CVE-2026-30964
Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validation
- State
- Published
- Severity
- 5.4 Medium
- Published
- Mar 10, 2026
- Updated
- Mar 10, 2026
- Reserved
- Mar 7, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N | GitHub_M |
Weaknesses
- CWE-346 Origin Validation Error
Affected Products
| Product | Versions |
|---|---|
webauthn-frameworkweb-auth |
|
webauthn-libweb-auth |
|
webauthn-symfony-bundleweb-auth |
|
References
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