Common Weakness Enumeration

CWE-1035

Grouping Prohibited

OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities

Status: Incomplete

Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017.

Grouping entries organize the catalogue and should not be used to map the root cause of a vulnerability.

Mapping guidance

This entry is a Grouping. Using groupings for mapping has been discouraged since 2019. They are informal organizational groupings of weaknesses that can help CWE users with data aggregation, navigation, and browsing. However, they are not weaknesses in themselves.

See member weaknesses of this category.

Notes

Relationship

This is an unusual category. CWE does not cover the limitations of human processes and procedures that cannot be described in terms of a specific technical weakness as resident in the code, architecture, or configuration of the software. Since "known vulnerabilities" can arise from any kind of weakness, it is not possible to map this OWASP category to other CWE entries, since it would effectively require mapping this category to ALL weaknesses.

Content history
Submission: CWE Content Team · MITRE · 2018-01-22 · CWE 3.1
Modification: CWE Content Team · MITRE · 2020-02-24 · CWE 4.0

updated References

Modification: CWE Content Team · MITRE · 2021-10-28 · CWE 4.6

updated Relationships

Modification: CWE Content Team · MITRE · 2023-04-27 · CWE 4.11

updated Mapping_Notes

Modification: CWE Content Team · MITRE · 2023-06-29 · CWE 4.12

updated Mapping_Notes

Modification: CWE Content Team · MITRE · 2025-09-09 · CWE 4.18

updated References

Modification: CWE Content Team · MITRE · 2025-12-11 · CWE 4.19

updated Relationships

Modification: CWE Content Team · MITRE · 2026-10-28 · CWE 5.0

updated Mapping_Notes, Type

13 vulnerabilities reference this CWE, most recent first.

CVE-2026-93579 (GCVE-0-2026-93579)

Vulnerability from cvelistv5 – Published: 2026-09-18 16:38 – Updated: 2026-11-06 17:32
VLAI
Title
Io.netty/netty-codec-http2: netty: http/2 header field values are not validated by default (cr/lf/nul passthrough)
Summary
A flaw was found in Netty's HTTP/2 stack. This vulnerability allows a remote attacker to inject prohibited characters, such as NUL, Line Feed, and Carriage Return, into HTTP/2 header field values due to insufficient validation. When these values cross an HTTP/2 to HTTP/1.1 translation boundary, they can be exploited for request smuggling, header injection, or response splitting. This could lead to unauthorized access, data manipulation, or other security bypasses.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 19:48 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:69440 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:69470 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:83612 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95221 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95759 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95760 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95761 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95762 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-93579 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536970 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Build of Debezium 3.6     cpe:/a:redhat:debezium:3.6
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.17-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-29 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-30 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4.17     cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6.8-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-24 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6.8     cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.27.5.SP2     cpe:/a:redhat:quarkus:3.27::el8
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.33.3.SP2     cpe:/a:redhat:quarkus:3.33::el8
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 8.1     cpe:/a:redhat:jboss_enterprise_application_platform_xp:6.0
Create a notification for this product.
Red Hat Red Hat AMQ Broker 7     cpe:/a:redhat:amq_broker:7
Create a notification for this product.
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3     cpe:/a:redhat:camel_quarkus:3
Create a notification for this product.
Red Hat Red Hat build of Apache Camel for Spring Boot 4     cpe:/a:redhat:camel_spring_boot:4
Create a notification for this product.
Red Hat Red Hat build of Apicurio Registry 3     cpe:/a:redhat:apicurio_registry:3
Create a notification for this product.
Red Hat Red Hat Data Grid 8     cpe:/a:redhat:jboss_data_grid:8
Create a notification for this product.
Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 7     cpe:/a:redhat:jboss_enterprise_application_platform:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 8     cpe:/a:redhat:jboss_enterprise_application_platform:8
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
Create a notification for this product.
Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
Create a notification for this product.
Date Public
2026-09-10 00:55
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93579",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-21T19:48:39.163858Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-21T20:49:52.715Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:debezium:3.6"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat Build of Debezium 3.6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4.17-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-29",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-30",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat build of Keycloak 26.4.17",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6.8-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat build of Keycloak 26.6.8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.27::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat build of Quarkus 3.27.5.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.33::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat build of Quarkus 3.33.3.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform_xp:6.0"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat JBoss Enterprise Application Platform 8.1",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_broker:7"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat AMQ Broker 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_quarkus:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat build of Apache Camel 4 for Quarkus 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat build of Apicurio Registry 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_data_grid:8"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat Data Grid 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http2",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http2",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat JBoss Enterprise Application Platform 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jbosseapxp"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http2",
          "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http2",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:55:17.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Netty\u0027s HTTP/2 stack. This vulnerability allows a remote attacker to inject prohibited characters, such as NUL, Line Feed, and Carriage Return, into HTTP/2 header field values due to insufficient validation. When these values cross an HTTP/2 to HTTP/1.1 translation boundary, they can be exploited for request smuggling, header injection, or response splitting. This could lead to unauthorized access, data manipulation, or other security bypasses."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T17:32:55.109Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "RHSA-2026:69440",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69440"
        },
        {
          "name": "RHSA-2026:69470",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69470"
        },
        {
          "name": "RHSA-2026:83612",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:83612"
        },
        {
          "name": "RHSA-2026:95221",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95221"
        },
        {
          "name": "RHSA-2026:95759",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95759"
        },
        {
          "name": "RHSA-2026:95760",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95760"
        },
        {
          "name": "RHSA-2026:95761",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95761"
        },
        {
          "name": "RHSA-2026:95762",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95762"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93579"
        },
        {
          "name": "RHBZ#2536970",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536970"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:55:17.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:55:17.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-http2: netty: http/2 header field values are not validated by default (cr/lf/nul passthrough)",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-8whp-c7w8-2m72 for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93579",
    "datePublished": "2026-09-18T16:38:29.480Z",
    "dateReserved": "2026-09-18T10:35:47.090Z",
    "dateUpdated": "2026-11-06T17:32:55.109Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93578 (GCVE-0-2026-93578)

Vulnerability from cvelistv5 – Published: 2026-09-18 10:53 – Updated: 2026-09-18 16:54
VLAI
Title
Io.netty/netty-handler-ssl-ocsp: netty: missing extended key usage (eku) check in ocsp client allows certificate revocation bypass
Summary
A flaw was found in Netty's Online Certificate Status Protocol (OCSP) Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage (EKU) in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority (CA), can exploit this by forging 'GOOD' OCSP responses for revoked certificates. This bypasses certificate revocation checks, allowing applications using Netty's OCSP Client to accept certificates that should have been revoked, leading to an authorization bypass.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:41 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-93578 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536969 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat build of Apache Camel for Spring Boot 4     cpe:/a:redhat:camel_spring_boot:4
Create a notification for this product.
Date Public
2026-09-10 00:54
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93578",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-18T14:41:00.538935Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-18T14:44:11.462Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-93578"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-handler-ssl-ocsp",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:54:25.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Netty\u0027s Online Certificate Status Protocol (OCSP) Client. The client fails to verify the \u0027id-kp-OCSPSigning\u0027 Extended Key Usage (EKU) in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority (CA), can exploit this by forging \u0027GOOD\u0027 OCSP responses for revoked certificates. This bypasses certificate revocation checks, allowing applications using Netty\u0027s OCSP Client to accept certificates that should have been revoked, leading to an authorization bypass."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-18T16:54:16.469Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93578"
        },
        {
          "name": "RHBZ#2536969",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536969"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:54:25.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:54:25.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-handler-ssl-ocsp: netty: missing extended key usage (eku) check in ocsp client allows certificate revocation bypass",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-jhjp-5q4f-8wr2 for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93578",
    "datePublished": "2026-09-18T10:53:59.267Z",
    "dateReserved": "2026-09-18T10:34:48.070Z",
    "dateUpdated": "2026-09-18T16:54:16.469Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93575 (GCVE-0-2026-93575)

Vulnerability from cvelistv5 – Published: 2026-09-18 10:53 – Updated: 2026-09-25 08:29
VLAI
Title
Io.netty/netty-codec-mqtt: netty: resource exhaustion in mqttdecoder
Summary
A flaw was found in Netty's MqttDecoder. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted MQTT CONNECT packet. The decoder fails to properly validate the 'Properties Length' against the 'Remaining Length', allowing an attacker to bypass size limits. This leads to excessive memory and CPU consumption, resulting in a denial of service (DoS) due to an OutOfMemoryError.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 14:18 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-93575 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536967 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-09-10 00:53
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93575",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T14:18:05.993557Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-22T14:18:56.894Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_broker:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-mqtt",
          "product": "Red Hat AMQ Broker 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-mqtt",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-mqtt",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-mqtt",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-mqtt",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:53:24.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Netty\u0027s MqttDecoder. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted MQTT CONNECT packet. The decoder fails to properly validate the \u0027Properties Length\u0027 against the \u0027Remaining Length\u0027, allowing an attacker to bypass size limits. This leads to excessive memory and CPU consumption, resulting in a denial of service (DoS) due to an OutOfMemoryError."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Important"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T08:29:03.072Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93575"
        },
        {
          "name": "RHBZ#2536967",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536967"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:53:24.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:53:24.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-mqtt: netty: resource exhaustion in mqttdecoder",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-jqf3-r9ww-c5x8 for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93575",
    "datePublished": "2026-09-18T10:53:48.089Z",
    "dateReserved": "2026-09-18T10:32:41.197Z",
    "dateUpdated": "2026-09-25T08:29:03.072Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93566 (GCVE-0-2026-93566)

Vulnerability from cvelistv5 – Published: 2026-09-18 14:19 – Updated: 2026-11-06 17:27
VLAI
Title
Io.netty/netty-codec-http: netty: http request smuggling due to control characters in the chunk-size line
Summary
A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can lead to HTTP request smuggling, potentially resulting in information disclosure or other unauthorized actions.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 14:28 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:69440 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:69470 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:83612 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95759 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95760 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95761 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95762 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95887 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-93566 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536954 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Build of Debezium 3.6     cpe:/a:redhat:debezium:3.6
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.17-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-29 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-30 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4.17     cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6.8-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-24 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6.8     cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.27.5.SP2     cpe:/a:redhat:quarkus:3.27::el8
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.33.3.SP2     cpe:/a:redhat:quarkus:3.33::el8
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 8.1     cpe:/a:redhat:jboss_enterprise_application_platform:8.1
Create a notification for this product.
Red Hat Red Hat AMQ Broker 7     cpe:/a:redhat:amq_broker:7
Create a notification for this product.
Red Hat Red Hat AMQ Clients     cpe:/a:redhat:amq_clients:2023
Create a notification for this product.
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3     cpe:/a:redhat:camel_quarkus:3
Create a notification for this product.
Red Hat Red Hat build of Apache Camel for Spring Boot 4     cpe:/a:redhat:camel_spring_boot:4
Create a notification for this product.
Red Hat Red Hat build of Apicurio Registry 3     cpe:/a:redhat:apicurio_registry:3
Create a notification for this product.
Red Hat Red Hat Data Grid 8     cpe:/a:redhat:jboss_data_grid:8
Create a notification for this product.
Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 7     cpe:/a:redhat:jboss_enterprise_application_platform:7
Create a notification for this product.
Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
Create a notification for this product.
Date Public
2026-09-10 00:47
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93566",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T14:28:28.241291Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-22T14:28:43.220Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:debezium:3.6"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat Build of Debezium 3.6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4.17-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-29",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-30",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Keycloak 26.4.17",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6.8-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Keycloak 26.6.8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.27::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Quarkus 3.27.5.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.33::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Quarkus 3.33.3.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8.1"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat JBoss Enterprise Application Platform 8.1",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_broker:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat AMQ Broker 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_clients:2023"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat AMQ Clients",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_quarkus:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apache Camel 4 for Quarkus 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apicurio Registry 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_data_grid:8"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat Data Grid 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:47:37.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can lead to HTTP request smuggling, potentially resulting in information disclosure or other unauthorized actions."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T17:27:28.560Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "RHSA-2026:69440",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69440"
        },
        {
          "name": "RHSA-2026:69470",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69470"
        },
        {
          "name": "RHSA-2026:83612",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:83612"
        },
        {
          "name": "RHSA-2026:95759",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95759"
        },
        {
          "name": "RHSA-2026:95760",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95760"
        },
        {
          "name": "RHSA-2026:95761",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95761"
        },
        {
          "name": "RHSA-2026:95762",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95762"
        },
        {
          "name": "RHSA-2026:95887",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95887"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93566"
        },
        {
          "name": "RHBZ#2536954",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536954"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:47:37.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:47:37.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-http: netty: http request smuggling due to control characters in the chunk-size line",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-rq4j-fc47-9698 for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93566",
    "datePublished": "2026-09-18T14:19:29.741Z",
    "dateReserved": "2026-09-18T10:00:52.431Z",
    "dateUpdated": "2026-11-06T17:27:28.560Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93565 (GCVE-0-2026-93565)

Vulnerability from cvelistv5 – Published: 2026-09-18 14:18 – Updated: 2026-11-06 17:12
VLAI
Title
Io.netty/netty-codec-http: netty rtspdecoder method-token smuggling via trailing control byte
Summary
A flaw was found in Netty RtspDecoder. The `RtspMethods.valueOf()` function incorrectly strips trailing control bytes from method tokens in Real-Time Streaming Protocol (RTSP) requests. A remote attacker can exploit this by sending a specially crafted RTSP request, leading to method-token smuggling. This vulnerability allows an attacker to bypass method-based access controls and can also be used to launder malicious requests through Netty-based RTSP proxies, making them appear legitimate to backend systems.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 19:48 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:69440 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:69470 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:70257 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:83612 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95759 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95760 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95761 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95762 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95887 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-93565 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536952 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Build of Apache Camel 3.33.3.SP2 Unaffected: 4.1.138.Final-redhat-00001 , < * (rpm)
    cpe:/a:redhat:apache_camel_quarkus:3.33
Create a notification for this product.
Red Hat Red Hat Build of Debezium 3.6     cpe:/a:redhat:debezium:3.6
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.17-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-29 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-30 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4.17     cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6.8-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-24 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6.8     cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.27.5.SP2     cpe:/a:redhat:quarkus:3.27::el8
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.33.3.SP2     cpe:/a:redhat:quarkus:3.33::el8
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 8.1     cpe:/a:redhat:jboss_enterprise_application_platform:8.1
Create a notification for this product.
Red Hat Red Hat AMQ Broker 7     cpe:/a:redhat:amq_broker:7
Create a notification for this product.
Red Hat Red Hat AMQ Clients     cpe:/a:redhat:amq_clients:2023
Create a notification for this product.
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3     cpe:/a:redhat:camel_quarkus:3
Create a notification for this product.
Red Hat Red Hat build of Apache Camel for Spring Boot 4     cpe:/a:redhat:camel_spring_boot:4
Create a notification for this product.
Red Hat Red Hat build of Apicurio Registry 3     cpe:/a:redhat:apicurio_registry:3
Create a notification for this product.
Red Hat Red Hat Data Grid 8     cpe:/a:redhat:jboss_data_grid:8
Create a notification for this product.
Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 7     cpe:/a:redhat:jboss_enterprise_application_platform:7
Create a notification for this product.
Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
Create a notification for this product.
Date Public
2026-09-10 00:47
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93565",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-21T19:48:34.585168Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-21T20:51:46.984Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apache_camel_quarkus:3.33"
          ],
          "defaultStatus": "affected",
          "packageName": "io.netty/netty-codec-http",
          "product": "Red Hat Build of Apache Camel 3.33.3.SP2",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "4.1.138.Final-redhat-00001",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:debezium:3.6"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat Build of Debezium 3.6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4.17-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-29",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-30",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Keycloak 26.4.17",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6.8-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Keycloak 26.6.8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.27::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Quarkus 3.27.5.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.33::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Quarkus 3.33.3.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8.1"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat JBoss Enterprise Application Platform 8.1",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_broker:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat AMQ Broker 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_clients:2023"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat AMQ Clients",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_quarkus:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apache Camel 4 for Quarkus 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apicurio Registry 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_data_grid:8"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat Data Grid 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:47:19.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Netty RtspDecoder. The `RtspMethods.valueOf()` function incorrectly strips trailing control bytes from method tokens in Real-Time Streaming Protocol (RTSP) requests. A remote attacker can exploit this by sending a specially crafted RTSP request, leading to method-token smuggling. This vulnerability allows an attacker to bypass method-based access controls and can also be used to launder malicious requests through Netty-based RTSP proxies, making them appear legitimate to backend systems."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Important"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T17:12:21.613Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "RHSA-2026:69440",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69440"
        },
        {
          "name": "RHSA-2026:69470",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69470"
        },
        {
          "name": "RHSA-2026:70257",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:70257"
        },
        {
          "name": "RHSA-2026:83612",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:83612"
        },
        {
          "name": "RHSA-2026:95759",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95759"
        },
        {
          "name": "RHSA-2026:95760",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95760"
        },
        {
          "name": "RHSA-2026:95761",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95761"
        },
        {
          "name": "RHSA-2026:95762",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95762"
        },
        {
          "name": "RHSA-2026:95887",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95887"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93565"
        },
        {
          "name": "RHBZ#2536952",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536952"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:47:19.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:47:19.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-http: netty rtspdecoder method-token smuggling via trailing control byte",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-h75q-xqrh-59rf for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93565",
    "datePublished": "2026-09-18T14:18:11.431Z",
    "dateReserved": "2026-09-18T09:59:50.676Z",
    "dateUpdated": "2026-11-06T17:12:21.613Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93564 (GCVE-0-2026-93564)

Vulnerability from cvelistv5 – Published: 2026-09-18 14:13 – Updated: 2026-11-06 17:12
VLAI
Title
Io.netty/netty-codec-haproxy: netty: haproxy proxy-v2 nested-tlv grandchild bytebuf reference-count leak (incomplete fix of pr #16881)
Summary
A flaw was found in Netty. A reference-count leak in the HAProxy PROXY-v2 message decoder allows a remote, unauthenticated attacker to send specially crafted PROXY-protocol v2 headers. This can lead to memory exhaustion, resulting in a Denial of Service (DoS) for the affected system.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 17:42 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:69440 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:69470 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:70257 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:83612 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95759 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95760 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95761 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95762 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-93564 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536953 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Build of Apache Camel 3.33.3.SP2 Unaffected: 4.1.138.Final-redhat-00001 , < * (rpm)
    cpe:/a:redhat:apache_camel_quarkus:3.33
Create a notification for this product.
Red Hat Red Hat Build of Debezium 3.6     cpe:/a:redhat:debezium:3.6
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.17-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-29 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-30 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4.17     cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6.8-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-24 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6.8     cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.27.5.SP2     cpe:/a:redhat:quarkus:3.27::el8
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.33.3.SP2     cpe:/a:redhat:quarkus:3.33::el8
Create a notification for this product.
Red Hat Red Hat AMQ Broker 7     cpe:/a:redhat:amq_broker:7
Create a notification for this product.
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3     cpe:/a:redhat:camel_quarkus:3
Create a notification for this product.
Red Hat Red Hat build of Apache Camel for Spring Boot 4     cpe:/a:redhat:camel_spring_boot:4
Create a notification for this product.
Red Hat Red Hat build of Apicurio Registry 3     cpe:/a:redhat:apicurio_registry:3
Create a notification for this product.
Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 7     cpe:/a:redhat:jboss_enterprise_application_platform:7
Create a notification for this product.
Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
Create a notification for this product.
Date Public
2026-09-10 00:46
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93564",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-18T17:42:29.142695Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-18T17:42:41.325Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apache_camel_quarkus:3.33"
          ],
          "defaultStatus": "affected",
          "packageName": "io.netty/netty-codec-haproxy",
          "product": "Red Hat Build of Apache Camel 3.33.3.SP2",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "4.1.138.Final-redhat-00001",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:debezium:3.6"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat Build of Debezium 3.6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4.17-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-29",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-30",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat build of Keycloak 26.4.17",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6.8-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat build of Keycloak 26.6.8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.27::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat build of Quarkus 3.27.5.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.33::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat build of Quarkus 3.33.3.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_broker:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat AMQ Broker 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_quarkus:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat build of Apache Camel 4 for Quarkus 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat build of Apicurio Registry 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-haproxy",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:46:51.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Netty. A reference-count leak in the HAProxy PROXY-v2 message decoder allows a remote, unauthenticated attacker to send specially crafted PROXY-protocol v2 headers. This can lead to memory exhaustion, resulting in a Denial of Service (DoS) for the affected system."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Important"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T17:12:17.265Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "RHSA-2026:69440",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69440"
        },
        {
          "name": "RHSA-2026:69470",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69470"
        },
        {
          "name": "RHSA-2026:70257",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:70257"
        },
        {
          "name": "RHSA-2026:83612",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:83612"
        },
        {
          "name": "RHSA-2026:95759",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95759"
        },
        {
          "name": "RHSA-2026:95760",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95760"
        },
        {
          "name": "RHSA-2026:95761",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95761"
        },
        {
          "name": "RHSA-2026:95762",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95762"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93564"
        },
        {
          "name": "RHBZ#2536953",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536953"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:46:51.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:46:51.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-haproxy: netty: haproxy proxy-v2 nested-tlv grandchild bytebuf reference-count leak (incomplete fix of pr #16881)",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-j58c-g352-8h4p for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93564",
    "datePublished": "2026-09-18T14:13:32.128Z",
    "dateReserved": "2026-09-18T09:58:47.232Z",
    "dateUpdated": "2026-11-06T17:12:17.265Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93563 (GCVE-0-2026-93563)

Vulnerability from cvelistv5 – Published: 2026-09-18 10:58 – Updated: 2026-09-25 08:28
VLAI
Title
Io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtpresponsedecoder leads to memory-exhaustion dos
Summary
A flaw was found in Netty's `SmtpResponseDecoder` component. A remote attacker, acting as a malicious or man-in-the-middle (MITM) SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory accumulation within the client's Java Virtual Machine (JVM) heap, causing an `OutOfMemoryError` and a denial of service (DoS) due to a process crash.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:07 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-93563 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536976 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-09-10 00:46
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93563",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-18T19:07:42.549423Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-18T19:07:55.068Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-smtp",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-smtp",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-smtp",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-smtp",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:46:23.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Netty\u0027s `SmtpResponseDecoder` component. A remote attacker, acting as a malicious or man-in-the-middle (MITM) SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory accumulation within the client\u0027s Java Virtual Machine (JVM) heap, causing an `OutOfMemoryError` and a denial of service (DoS) due to a process crash."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Important"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T08:28:58.433Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93563"
        },
        {
          "name": "RHBZ#2536976",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536976"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:46:23.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:46:23.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtpresponsedecoder leads to memory-exhaustion dos",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-pq4x-537v-r54q for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93563",
    "datePublished": "2026-09-18T10:58:35.205Z",
    "dateReserved": "2026-09-18T09:56:54.043Z",
    "dateUpdated": "2026-09-25T08:28:58.433Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93562 (GCVE-0-2026-93562)

Vulnerability from cvelistv5 – Published: 2026-09-18 20:12 – Updated: 2026-11-06 17:27
VLAI
Title
Io.netty/netty-codec-http: netty: incomplete validation of malformed transfer-encoding allows http request smuggling
Summary
A flaw was found in Netty's HTTP/1 decoder. Incomplete validation of malformed Transfer-Encoding headers allows a remote attacker to perform HTTP request smuggling. By sending specially crafted HTTP requests, an attacker can inject arbitrary HTTP requests, potentially bypassing security controls or accessing unauthorized resources.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 16:17 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:69440 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:69470 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:83612 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95759 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95760 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95761 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95762 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95887 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-93562 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536951 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Build of Debezium 3.6     cpe:/a:redhat:debezium:3.6
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.17-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-29 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-30 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4.17     cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6.8-2 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-24 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.6.8     cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.27.5.SP2     cpe:/a:redhat:quarkus:3.27::el8
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.33.3.SP2     cpe:/a:redhat:quarkus:3.33::el8
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 8.1     cpe:/a:redhat:jboss_enterprise_application_platform:8.1
Create a notification for this product.
Red Hat Red Hat AMQ Broker 7     cpe:/a:redhat:amq_broker:7
Create a notification for this product.
Red Hat Red Hat AMQ Clients     cpe:/a:redhat:amq_clients:2023
Create a notification for this product.
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3     cpe:/a:redhat:camel_quarkus:3
Create a notification for this product.
Red Hat Red Hat build of Apache Camel for Spring Boot 4     cpe:/a:redhat:camel_spring_boot:4
Create a notification for this product.
Red Hat Red Hat build of Apicurio Registry 3     cpe:/a:redhat:apicurio_registry:3
Create a notification for this product.
Red Hat Red Hat Data Grid 8     cpe:/a:redhat:jboss_data_grid:8
Create a notification for this product.
Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 7     cpe:/a:redhat:jboss_enterprise_application_platform:7
Create a notification for this product.
Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
Create a notification for this product.
Date Public
2026-09-10 00:45
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93562",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T16:17:26.080353Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-22T16:17:31.584Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536951"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:debezium:3.6"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat Build of Debezium 3.6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4.17-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-29",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.4",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.4-30",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Keycloak 26.4.17",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-operator-bundle",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6.8-2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "product": "Red Hat build of Keycloak 26.6",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "26.6-24",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.6::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Keycloak 26.6.8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.27::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Quarkus 3.27.5.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:quarkus:3.33::el8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Quarkus 3.33.3.SP2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8.1"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-http",
          "product": "Red Hat JBoss Enterprise Application Platform 8.1",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_broker:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat AMQ Broker 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:amq_clients:2023"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat AMQ Clients",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_quarkus:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apache Camel 4 for Quarkus 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat build of Apicurio Registry 3",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_data_grid:8"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-http",
          "product": "Red Hat Data Grid 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-http",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:45:54.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Netty\u0027s HTTP/1 decoder. Incomplete validation of malformed Transfer-Encoding headers allows a remote attacker to perform HTTP request smuggling. By sending specially crafted HTTP requests, an attacker can inject arbitrary HTTP requests, potentially bypassing security controls or accessing unauthorized resources."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T17:27:26.509Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "RHSA-2026:69440",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69440"
        },
        {
          "name": "RHSA-2026:69470",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:69470"
        },
        {
          "name": "RHSA-2026:83612",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:83612"
        },
        {
          "name": "RHSA-2026:95759",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95759"
        },
        {
          "name": "RHSA-2026:95760",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95760"
        },
        {
          "name": "RHSA-2026:95761",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95761"
        },
        {
          "name": "RHSA-2026:95762",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95762"
        },
        {
          "name": "RHSA-2026:95887",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:95887"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93562"
        },
        {
          "name": "RHBZ#2536951",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536951"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:45:54.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:45:54.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-http: netty: incomplete validation of malformed transfer-encoding allows http request smuggling",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-hcvj-94mj-jp5c for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93562",
    "datePublished": "2026-09-18T20:12:51.910Z",
    "dateReserved": "2026-09-18T09:51:35.203Z",
    "dateUpdated": "2026-11-06T17:27:26.509Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93561 (GCVE-0-2026-93561)

Vulnerability from cvelistv5 – Published: 2026-09-18 10:02 – Updated: 2026-09-25 08:28
VLAI
Title
Io.netty/netty-codec-memcache: netty: memcache binary codec signed/unsigned type mismatch causes frame desynchronization and response smuggling
Summary
A flaw was found in io.netty/netty-codec-memcache. The Memcache binary protocol codec incorrectly reads `keyLength` and `extrasLength` as signed Java types instead of unsigned, as specified by the protocol. A malicious Memcache server can exploit this type mismatch by sending a specially crafted response. This can lead to frame desynchronization and response smuggling, where one client's data may be inadvertently exposed to another client's response stream in proxy or cache environments.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:48 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-93561 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536949 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-09-10 00:44
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93561",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-18T14:48:56.320115Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-18T14:54:30.400Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536949"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-memcache",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "unaffected",
          "packageName": "netty-codec-memcache",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-memcache",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-memcache",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:44:07.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in io.netty/netty-codec-memcache. The Memcache binary protocol codec incorrectly reads `keyLength` and `extrasLength` as signed Java types instead of unsigned, as specified by the protocol. A malicious Memcache server can exploit this type mismatch by sending a specially crafted response. This can lead to frame desynchronization and response smuggling, where one client\u0027s data may be inadvertently exposed to another client\u0027s response stream in proxy or cache environments."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Important"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T08:28:53.009Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93561"
        },
        {
          "name": "RHBZ#2536949",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536949"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:44:07.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:44:07.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-memcache: netty: memcache binary codec signed/unsigned type mismatch causes frame desynchronization and response smuggling",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-wxrh-4rgq-pjcg for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93561",
    "datePublished": "2026-09-18T10:02:36.581Z",
    "dateReserved": "2026-09-18T09:47:37.249Z",
    "dateUpdated": "2026-09-25T08:28:53.009Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93560 (GCVE-0-2026-93560)

Vulnerability from cvelistv5 – Published: 2026-09-18 13:44 – Updated: 2026-09-22 14:26
VLAI
Title
Io.netty/netty-codec-stomp: netty: stomp codec content-length long-to-int truncation causes infinite decode loop dos
Summary
A flaw was found in the Netty STOMP codec. A remote attacker could send a specially crafted STOMP frame with a content-length header exceeding the maximum integer value. This integer truncation vulnerability could lead to an infinite decode loop, causing a Denial of Service (DoS) by exhausting memory and CPU resources.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 14:26 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1164 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-93560 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536939 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-09-10 00:43
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93560",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T14:26:19.583278Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-22T14:26:30.197Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:4"
          ],
          "defaultStatus": "affected",
          "packageName": "netty-codec-stomp",
          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-stomp",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-stomp",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "unknown",
          "packageName": "netty-codec-stomp",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2026-09-10T00:43:35.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in the Netty STOMP codec. A remote attacker could send a specially crafted STOMP frame with a content-length header exceeding the maximum integer value. This integer truncation vulnerability could lead to an infinite decode loop, causing a Denial of Service (DoS) by exhausting memory and CPU resources."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Important"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1035",
              "description": "CWE-1035",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-18T20:12:11.114Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-93560"
        },
        {
          "name": "RHBZ#2536939",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536939"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T00:43:35.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T00:43:35.000Z",
          "value": "Made public."
        }
      ],
      "title": "Io.netty/netty-codec-stomp: netty: stomp codec content-length long-to-int truncation causes infinite decode loop dos",
      "workarounds": [
        {
          "lang": "en",
          "value": "See https://github.com/netty/netty/security/advisories/GHSA-hmf3-49g9-g7qq for fixed versions and remediation guidance."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-1035"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-93560",
    "datePublished": "2026-09-18T13:44:20.840Z",
    "dateReserved": "2026-09-18T09:45:07.908Z",
    "dateUpdated": "2026-09-22T14:26:30.197Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.