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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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.
    (CVE-2026-45051)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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.
    (CVE-2026-45051)

ID	Name	Product	Family	Type	Severity
346350	Linux Distros Unpatched Vulnerability : CVE-2026-45051	Nessus	Misc.	Local	critical
443885	SCA: security update for org.openidentityplatform.openam:openam-auth-webauthn (GHSA-6c99-87fr-6q7r)	Tenable Cloud Security	SCA Checks	Local	critical
443885	SCA: security update for org.openidentityplatform.openam:openam-auth-webauthn (GHSA-6c99-87fr-6q7r)	Tenable Self-Hosted Container Security	SCA Checks	Local	critical

Detections

Analytics

CVE-2026-45051

critical

Tenable Plugins

critical

critical

critical