Bug 2446118 (CVE-2026-30964) - CVE-2026-30964 web-auth/webauthn-lib: web-auth/webauthn-lib: Origin validation bypass due to host component reduction
Summary: CVE-2026-30964 web-auth/webauthn-lib: web-auth/webauthn-lib: Origin validatio...
Keywords:
Status: NEW
Alias: CVE-2026-30964
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2446241 2446243 2446240 2446242
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-10 18:04 UTC by OSIDB Bzimport
Modified: 2026-03-10 20:29 UTC (History)
0 users

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Description OSIDB Bzimport 2026-03-10 18:04:06 UTC 
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.
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