CVSS 3.1
5.4 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:NCVE-2026-30964
Medium (5.4) in spomky-labs. EPSS 0.2% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-31)
- CWE
- CWE-346
- Published
- Modified
- Record from
- the NVD, synced
Affected
- spomky-labs:webauthn-lib
- spomky-labs:webauthn-symfony-bundle
- spomky-labs:webauthn_framwork
References
- https://github.com/web-auth/webauthn-framework/commit/535cc3c2dcbd9c3dfd5e00a254ad4a984e5e7839
- https://github.com/web-auth/webauthn-framework/commit/b4cd9a4394c35fcac6080fd2f84f4f58a30abc01
- https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-f7pm-6hr8-7ggm
- https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-f7pm-6hr8-7ggm