CVE-2026-30964
Last modified
CVE-2026-30964 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.20% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Spomky-Labs | Webauthn-Lib | >= 5.2.0, < 5.2.4 |
| Spomky-Labs | Webauthn-Symfony-Bundle | >= 5.2.0, < 5.2.4 |
| Spomky-Labs | Webauthn Framwork | >= 5.2.0, < 5.2.4 |
References
- https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-f7pm-6hr8-7ggmExploit, Vendor Advisory
- https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-f7pm-6hr8-7ggmExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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