CVE-2026-23552

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.

Risk Information

Base Score

9.1

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Score

Exploitation Probability

0.057

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2026-23552 are fixed in Apache - camel-keycloak 4.18.0	Windows
Vulnerabilities CVE-2026-23552 are fixed in Apache - camel-keycloak for Linux 4.18.0	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234