FKIE_CVE-2026-33870

Vulnerability from fkie_nvd - Published: 2026-03-27 20:16 - Updated: 2026-07-03 13:17
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue.
References
security-advisories@github.comhttps://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8Exploit, Mitigation, Vendor Advisory
security-advisories@github.comhttps://w4ke.info/2025/06/18/funky-chunks.htmlTechnical Description
security-advisories@github.comhttps://w4ke.info/2025/10/29/funky-chunks-2.htmlTechnical Description
security-advisories@github.comhttps://www.rfc-editor.org/rfc/rfc9110Technical Description
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:10175
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:10184
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:13571
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:14272
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:14276
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:17668
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:17789
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:18054
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:18055
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:18059
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:22619
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:34608
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:7109
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:7380
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:8159
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:8509
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-33870
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2452453
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33870.json
Impacted products
Vendor Product Version
netty netty *
netty netty *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "netty",
          "vendor": "netty",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.1.132.Final"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.2.0.Alpha1, \u003c 4.2.10.Final"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
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          "product": "Red Hat JBoss EAP 8.1 for RHEL 8",
          "vendor": "Red Hat"
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        {
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          "product": "Red Hat JBoss EAP 8.1 for RHEL 9",
          "vendor": "Red Hat"
        },
        {
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          "defaultStatus": "affected",
          "product": "Red Hat AMQ Broker 7.12.7",
          "vendor": "Red Hat"
        },
        {
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        },
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          "vendor": "Red Hat"
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          "vendor": "Red Hat"
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          "product": "Red Hat OpenShift AI 2.25",
          "vendor": "Red Hat"
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        {
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          "product": "Red Hat OpenShift Dev Spaces 3.27",
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          "vendor": "Red Hat"
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          "defaultStatus": "affected",
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        {
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          "defaultStatus": "affected",
          "product": "Red Hat build of Quarkus 3.27.3",
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        {
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          "vendor": "Red Hat"
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        {
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          ],
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          "vendor": "Red Hat"
        },
        {
          "cpes": [
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          "product": "Logging Subsystem for Red Hat OpenShift",
          "vendor": "Red Hat"
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          "vendor": "Red Hat"
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          "product": "Red Hat AMQ Clients",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
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          "defaultStatus": "affected",
          "product": "Red Hat build of Apache Camel - HawtIO 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
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          ],
          "defaultStatus": "affected",
          "product": "Red Hat build of Apache Camel 4 for Quarkus 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
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          "defaultStatus": "affected",
          "product": "Red Hat build of Apicurio Registry 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
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          ],
          "defaultStatus": "affected",
          "product": "Red Hat build of Apicurio Registry 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:debezium:3"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat build of Debezium 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
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          "product": "Red Hat Build of Keycloak",
          "vendor": "Red Hat"
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        {
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          "product": "Red Hat build of OptaPlanner 8",
          "vendor": "Red Hat"
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          "vendor": "Red Hat"
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          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
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  "configurations": [
    {
      "nodes": [
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              "matchCriteriaId": "8F551B7E-5E29-4062-8FDB-AA1377B3E8F5",
              "versionEndExcluding": "4.1.132",
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    }
  ],
  "id": "CVE-2026-33870",
  "lastModified": "2026-07-03T13:17:06.177",
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          "version": "2.0.3"
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}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.