{"id":"CVE-2026-30964","aliases":["GHSA-f7pm-6hr8-7ggm"],"url":"https://o3.security/vulnerability/CVE-2026-30964","summary":"Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validation","details":"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":"2026-03-10T17:16:46.895Z","modified":"2026-08-24T03:31:16.467866351Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"web-auth/webauthn-framework","fixedVersion":"5.2.4"},{"ecosystem":"Packagist","name":"web-auth/webauthn-lib","fixedVersion":"5.2.4"},{"ecosystem":"Packagist","name":"web-auth/webauthn-symfony-bundle","fixedVersion":"5.2.4"}],"fix":{"url":"https://github.com/web-auth/webauthn-framework/commit/535cc3c2dcbd9c3dfd5e00a254ad4a984e5e7839","label":"web-auth/webauthn-framework@535cc3c"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30964.json"},{"type":"ADVISORY","url":"https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-f7pm-6hr8-7ggm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30964"},{"type":"FIX","url":"https://github.com/web-auth/webauthn-framework/commit/535cc3c2dcbd9c3dfd5e00a254ad4a984e5e7839"},{"type":"FIX","url":"https://github.com/web-auth/webauthn-framework/commit/b4cd9a4394c35fcac6080fd2f84f4f58a30abc01"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-24T03:31:16.467866351Z"}}