Vulnerability Description
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, WebAuthnAuthentication loads a serialized AuthenticatorImpl object graph from the configured userAttribute through loadAuthenticators without an ObjectInputFilter. Exploitation requires the WebAuthn flow to be reachable and an attacker to have previously written controlled data to that attribute through delegated administration, provisioning, directory access, legacy REST self-registration, or unsafe configuration. When those non-default conditions hold, the data is deserialized before assertion verification and can execute a classpath gadget in the application server process. This issue is fixed in version 16.1.1.
Related Weaknesses (CWE)
References
- https://github.com/OpenIdentityPlatform/OpenAM/commit/8b02328d36bc9cd40602128a6d
- https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1
- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-6c99-87f
FAQ
What is CVE-2026-45051?
CVE-2026-45051 is a documented vulnerability. Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, WebAuthnAuthentication loads a serialized AuthenticatorImpl object graph from the configured userAttribute through lo...
How severe is CVE-2026-45051?
CVSS scoring is not yet available for CVE-2026-45051. Check NVD for updates.
Is there a patch for CVE-2026-45051?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.