CVE-2026-23552

critical · 9.1

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.

9.1

CVSS

0.4%

EPSS (exploit prob.)

37th

EPSS percentile

2026-02-23

Published

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

Weaknesses

CWE-346

Affected products

Vendor	Product	Affected versions
apache	camel	>= 4.15.0, < 4.18.0

Check a specific version with /api/v1/cve/match.

References

https://camel.apache.org/security/CVE-2026-23552.html
https://github.com/oscerd/CVE-2026-23552
http://www.openwall.com/lists/oss-security/2026/02/18/7

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-23552