CVE-2026-23552

Published February 23rd, 2026

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CVSS v3

9.1

CRITICAL

CVSS v2

N/A

Affected

PROJECT

Description

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.

oscerd/CVE-2026-23552

CVE-2026-23552 - Cross-Realm Token Acceptance in camel-keycloak

GitHub