CVE-2026-30964GHSA-F7PM-6HR8-7GGM
Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validation
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.2.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: poc
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- web-auth webauthn-framework
fixed in 5.2.4
- web-auth webauthn-lib
fixed in 5.2.4
- web-auth webauthn-symfony-bundle
fixed in 5.2.4
- web-auth/webauthn-frameworkPackagist
From 5.2.0 · fixed in 5.2.4
- web-auth/webauthn-libPackagist
From 5.2.0 · fixed in 5.2.4
- web-auth/webauthn-symfony-bundlePackagist
From 5.2.0 · fixed in 5.2.4