CVE-2026-30964
Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validation
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-346 |
| Vendor | web-auth |
| Product | webauthn-framework |
| Published | Mar 10, 2026 |
| Last Updated | Mar 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
web-auth / webauthn-framework
< 5.2.4
web-auth / webauthn-lib
< 5.2.4
web-auth / webauthn-symfony-bundle
< 5.2.4
References
github.com: https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-f7pm-6hr8-7ggm github.com: https://github.com/web-auth/webauthn-framework/commit/535cc3c2dcbd9c3dfd5e00a254ad4a984e5e7839 github.com: https://github.com/web-auth/webauthn-framework/commit/b4cd9a4394c35fcac6080fd2f84f4f58a30abc01