critical9.1
CVE-2026-23552
Apache Camel: KeycloakSecurityPolicy does not validate issuer of JWT tokens against configured realm
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.apache.camel:camel-keycloak | >= 4.15.0, < 4.18.0 | 4.18.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Camel | from 4.15.0 before 4.18.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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
- https://github.com/advisories/GHSA-c3f3-cc42-xr9v
- https://nvd.nist.gov/vuln/detail/CVE-2026-23552
- https://github.com/apache/camel/commit/c1ed776e3a4fa23d15acf4b9a48fdf758d4316ff
- https://issues.apache.org/jira/browse/CAMEL-22854