GHSA-C3F3-CC42-XR9V

Vulnerability from github – Published: 2026-02-23 09:31 – Updated: 2026-02-25 18:04
VLAI?
Summary
Apache Camel: KeycloakSecurityPolicy does not validate issuer of JWT tokens against configured realm
Details

Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. 

The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss (issuer) claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy configured for a completely different realm, breaking tenant isolation. This issue affects Apache Camel: from 4.15.0 before 4.18.0.

Users are recommended to upgrade to version 4.18.0, which fixes the issue.

Severity ?
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.camel:camel-keycloak"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.15.0"
            },
            {
              "fixed": "4.18.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-23552"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-346"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-25T18:04:33Z",
    "nvd_published_at": "2026-02-23T09:17:00Z",
    "severity": "CRITICAL"
  },
  "details": "Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component.\u00a0\n\nThe Camel-Keycloak KeycloakSecurityPolicy does not validate the iss (issuer) claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy configured for a completely different realm, breaking tenant isolation.\nThis issue affects Apache Camel: from 4.15.0 before 4.18.0.\n\nUsers are recommended to upgrade to version 4.18.0, which fixes the issue.",
  "id": "GHSA-c3f3-cc42-xr9v",
  "modified": "2026-02-25T18:04:33Z",
  "published": "2026-02-23T09:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23552"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/camel/commit/c1ed776e3a4fa23d15acf4b9a48fdf758d4316ff"
    },
    {
      "type": "WEB",
      "url": "https://camel.apache.org/security/CVE-2026-23552.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/camel"
    },
    {
      "type": "WEB",
      "url": "https://github.com/oscerd/CVE-2026-23552"
    },
    {
      "type": "WEB",
      "url": "https://issues.apache.org/jira/browse/CAMEL-22854"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/02/18/7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Camel: KeycloakSecurityPolicy does not validate issuer of JWT tokens against configured realm"
}


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