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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Camel | 4.15.0 – < 4.18.0 | 4.18.0 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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oscerd/CVE-2026-23552 ★ 0 · Feb 9, 2026
CVE-2026-23552 - Cross-Realm Token Acceptance in camel-keycloak
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.camel:camel-keycloak | >= 4.15.0, < 4.18.0 | 4.18.0 | GHSA-c3f3-cc42-xr9v |
Advisories 1
- WID-SEC-2026-0445 Apache Camel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 5, 2026
References
- https://camel.apache.org/security/CVE-2026-23552.html vendor-advisory
- https://github.com/oscerd/CVE-2026-23552 exploit