Vulnerability Description
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the private_key_jwt client authentication path uses ClientJwksResolverCache without reliably binding a cached jwks_uri resolver and verified assertion to the expected clientID in ClientCredentialsReader. An attacker controlling any registered client with published keys, including one obtained through open dynamic registration when enabled, can authenticate as another client whose keys are exposed through jwks_uri and mint tokens in that client's name across realms in the same OpenAM process. This issue is fixed in version 16.1.1.
Related Weaknesses (CWE)
References
- https://github.com/OpenIdentityPlatform/OpenAM/commit/91acaf499162097ec83bcd7292
- https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1
- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-f2cx-463
FAQ
What is CVE-2026-47426?
CVE-2026-47426 is a documented vulnerability. Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the private_key_jwt client authentication path uses ClientJwksResolverCache without reliably binding a cached jwks_ur...
How severe is CVE-2026-47426?
CVSS scoring is not yet available for CVE-2026-47426. Check NVD for updates.
Is there a patch for CVE-2026-47426?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.