CVE-2026-23552 json
Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy
published 2026-02-23 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-7591 , GHSA-c3f3-cc42-xr9v
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.apache.camel:camel-keycloak 4.18.0
- Apache Software Foundation Apache Camel 4.18.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/oscerd/CVE-2026-23552 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.camel:camel-keycloak | >=4.15.0, <4.18.0 |
4.18.0 |
Affected products
- Apache Software Foundation Apache Camel
Classification
- Weakness
-
- CWE-346 Origin Validation Error
References
-
github.com
/apache/camel/commit/c1ed776e3a4fa23d15acf4b9a48fdf758d4316ff
web
-
github.com
/oscerd/CVE-2026-23552
exploit, web, third-party-advisory
-
camel.apache.org
/security/CVE-2026-23552.html
vendor-advisory, web
-
openwall.com
/lists/oss-security/2026/02/18/7
web, mailing-list, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-23552
advisory
-
github.com
/apache/camel
package
-
issues.apache.org
/jira/browse/CAMEL-22854
web
Sources
- CVE List CVE-2026-23552
- GitHub Advisory GHSA-c3f3-cc42-xr9v
- NVD CVE-2026-23552
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.