CVE-2026-93432 (GCVE-0-2026-93432)

Vulnerability from cvelistv5 – Published: 2026-09-18 17:53 – Updated: 2026-10-15 23:41
VLAI
Title
Io.quarkus.qute:quarkus-core: cross-site scripting (xss) and json injection via qute {#eval} section in quarkus
Summary
A flaw was found in the Quarkus Qute template engine. When the {#eval} section helper processes a sub-template, it fails to pass the parent template's content type information. This bypasses standard escaping mechanisms, allowing untrusted data to be output as raw, unescaped text. This vulnerability can lead to Cross-Site Scripting (XSS) and JSON Injection, potentially allowing a remote attacker to execute arbitrary code in a user's browser or manipulate data.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:48 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1022 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:83082 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:83520 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-93432 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536859 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat build of Quarkus 3.27.6.redhat Unaffected: 3.27.6.redhat-00004 , < * (rpm)
    cpe:/a:redhat:quarkus:3.27::el8
Create a notification for this product.
Red Hat Red Hat build of Quarkus 3.33.4.redhat Unaffected: 3.33.4.redhat-00004 , < * (rpm)
    cpe:/a:redhat:quarkus:3.33::el8
Create a notification for this product.
Red Hat Exploit Intelligence     cpe:/a:redhat:exploit_intelligence:0
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 Apicurio Registry 3     cpe:/a:redhat:apicurio_registry:3
Create a notification for this product.
Red Hat Red Hat Build of Keycloak     cpe:/a:redhat:build_keycloak:
Create a notification for this product.
Red Hat Red Hat build of Quarkus     cpe:/a:redhat:quarkus: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.
Date Public
2026-09-16 00:00
Credits
Red Hat would like to thank Michael Read for reporting this issue.
Show details on NVD website
To clipboard 

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              "product": "Red Hat build of Apicurio Registry 3",
              "vendor": "Red Hat"
            },
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              "cpes": [
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              "packageName": "qute-core",
              "product": "Red Hat Build of Keycloak",
              "vendor": "Red Hat"
            },
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              "cpes": [
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              "defaultStatus": "affected",
              "packageName": "rhbk/keycloak-rhel9-operator",
              "product": "Red Hat Build of Keycloak",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:quarkus:3"
              ],
              "defaultStatus": "affected",
              "packageName": "qute-generator",
              "product": "Red Hat build of Quarkus",
              "vendor": "Red Hat"
            },
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              "cpes": [
                "cpe:/a:redhat:jboss_fuse:7"
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              "packageName": "qute-core",
              "product": "Red Hat Fuse 7",
              "vendor": "Red Hat"
            },
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              "packageName": "qute-generator",
              "product": "Red Hat Fuse 7",
              "vendor": "Red Hat"
            }
          ],
          "credits": [
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              "lang": "en",
              "value": "Red Hat would like to thank Michael Read for reporting this issue."
            }
          ],
          "datePublic": "2026-09-16T00:00:00.000Z",
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            {
              "lang": "en",
              "value": "A flaw was found in the Quarkus Qute template engine. When the {#eval} section helper processes a sub-template, it fails to pass the parent template\u0027s content type information. This bypasses standard escaping mechanisms, allowing untrusted data to be output as raw, unescaped text. This vulnerability can lead to Cross-Site Scripting (XSS) and JSON Injection, potentially allowing a remote attacker to execute arbitrary code in a user\u0027s browser or manipulate data."
            }
          ],
          "metrics": [
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                  "value": "Moderate"
                },
                "type": "Red Hat severity rating"
              }
            },
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              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.1,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                "version": "3.1"
              },
              "format": "CVSS"
            }
          ],
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                  "cweId": "CWE-79",
                  "description": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
                  "lang": "en",
                  "type": "CWE"
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              ]
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            "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
            "shortName": "redhat"
          },
          "references": [
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              "name": "RHSA-2026:83082",
              "tags": [
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                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:83082"
            },
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-93432"
            },
            {
              "name": "RHBZ#2536859",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
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            }
          ],
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              "time": "2026-09-16T14:38:08.856Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-09-16T00:00:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Io.quarkus.qute:quarkus-core: cross-site scripting (xss) and json injection via qute {#eval} section in quarkus",
          "workarounds": [
            {
              "lang": "en",
              "value": "Users who cannot immediately upgrade can mitigate this issue by updating their templates to use the str:eval extension method instead of the {#eval} section helper.\nVulnerable pattern: {#eval snippet /}\nSecure alternative: {str:eval(snippet)}"
            }
          ],
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            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-93432",
        "datePublished": "2026-09-18T17:53:19.772Z",
        "dateReserved": "2026-09-17T21:23:48.866Z",
        "dateUpdated": "2026-10-15T18:19:05.108Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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