CVE-2026-45051Critical· 9.2▾ MidnightOpen 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 ObjectInp…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.6 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Sep 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.7%
— → 9.2
Last analysed / modified upstream
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
org.openidentityplatform.openam:openam-auth-webauthn <= 16.0.6Patched in:
org.openidentityplatform.openam:openam-auth-webauthn 16.1.1Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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