OpenAM: WebAuthn Java deserialization RCE via ObjectInputFilter depth>1 bypass

Date Jul 24, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product Maven · org.openidentityplatform.openam:openam-auth-webauthn

CVE CVE-2026-62263

Critical vendor advisory CVE-2026-62263

Summary

OpenAM: WebAuthn Java deserialization RCE via ObjectInputFilter depth>1 bypass

Why it matters

GitHub has published a reviewed security advisory for org.openidentityplatform.openam:openam-auth-webauthn. Prioritize it with other application dependency updates.

Operator check

Check whether org.openidentityplatform.openam:openam-auth-webauthn is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 9.2.

Sources

GitHub Advisory GHSA-gf8h-gq53-288j NVD — CVE-2026-62263 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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