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critical advisory

OpenAM Pre-Auth RCE via WebAuthn Java Deserialization (CVE-2026-45051)

A critical deserialization of untrusted data vulnerability, identified as CVE-2026-45051, in OpenAM's WebAuthn authentication module (openam-auth-webauthn) allows for pre-authentication arbitrary code execution (RCE) on the application server if an attacker can first write controlled data to a user's storage attribute, impacting OpenAM Community Edition through version 16.0.6.

OpenAM Community Edition <= 16.0.6 +1 deserialization RCE OpenAM WebAuthn CVE application-exploitation
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