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Advisory record · GHSA-c3f3-cc42-xr9v

Apache Camel: KeycloakSecurityPolicy does not validate issuer of JWT tokens against configured realm

CVSS 9.1 CriticalCriticalEPSS 0.0061 · 49th percentile

Critical, because:

  • CVSS score 9.1: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 23 Feb 2026, 09:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.apache.camel:camel-keycloakMaven>=4.15.0, <4.18.04.18.0
Identifiers
GHSA-c3f3-cc42-xr9v · CVE-2026-23552
Weakness (CWE)
CWE-346
Tags
Published
23 Feb 2026
Updated
25 Feb 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Apache Camel's camel-keycloak component, versions 4.15.0 before 4.18.0, does not check the issuer claim of JWT tokens against the configured Keycloak realm in KeycloakSecurityPolicy. An attacker holding a valid token from a different realm may have it accepted, which breaks tenant isolation. Upgrade to camel-keycloak 4.18.0 or later.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.1 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0061, the 49th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:21 UTC First seen by agentprime
  2. 31 Oct 2026, 14:21 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.