CVE-2026-30964
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
ProductSpomky-labs Webauthn-lib
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-346CWE-346
How to fix
Update
- spomky-labs webauthn-lib5.2.4 or later
- spomky-labs webauthn-symfony-bundle5.2.4 or later
- spomky-labs webauthn_framwork5.2.4 or later
- web-auth/webauthn-framework5.2.4 or later
- web-auth/webauthn-lib5.2.4 or later
- web-auth/webauthn-symfony-bundle5.2.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| spomky-labs webauthn-lib | 5.2.0 ≤ v < 5.2.4 | 5.2.4 |
| spomky-labs webauthn-symfony-bundle | 5.2.0 ≤ v < 5.2.4 | 5.2.4 |
| spomky-labs webauthn_framwork | 5.2.0 ≤ v < 5.2.4 | 5.2.4 |
| web-auth/webauthn-frameworkPackagist | 5.2.0 ≤ v < 5.2.4 | 5.2.4 |
| web-auth/webauthn-libPackagist | 5.2.0 ≤ v < 5.2.4 | 5.2.4 |
| web-auth/webauthn-symfony-bundlePackagist | 5.2.0 ≤ v < 5.2.4 | 5.2.4 |
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