CVE-2026-30964 — Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validation
web-auth/webauthn-lib is an open source set of PHP libraries and a Symfony bundle to allow developers to integrate that authentication mechanism into their web applications. Pri…
Published: 2026-03-10 · CVSS: 5.4 · CVSS 3.1
web-auth/webauthn-lib is an open source set of PHP libraries and a Symfony bundle to allow developers to integrate that authentication mechanism into their web applications. Prior to 5.2.4, when allowed_origins is configured, CheckAllowedOrigins reduces URL-like values to their host component and accepts on host match alone. This makes exact origin policies impossible to express: scheme and port differences are silently ignored. This vulnerability is fixed in 5.2.4.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7