CVE-2026-30964

Description

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.

PUBLISHED Reserved 2026-03-07 | Published 2026-03-10 | Updated 2026-03-10 | Assigner GitHub_M

Problem types

CWE-346: Origin Validation Error

Product status

References

github.com/...mework/security/advisories/GHSA-f7pm-6hr8-7ggm exploit

github.com/...mework/security/advisories/GHSA-f7pm-6hr8-7ggm

github.com/...ommit/535cc3c2dcbd9c3dfd5e00a254ad4a984e5e7839

github.com/...ommit/b4cd9a4394c35fcac6080fd2f84f4f58a30abc01

cve.org (CVE-2026-30964)

nvd.nist.gov (CVE-2026-30964)

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