CVE-2026-30964

Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validation

Published Mar 10, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-f7pm-6hr8-7ggm Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validation
History
Type Values Removed Values Added
First Time appeared Spomky-labs
Spomky-labs webauthn-lib
Spomky-labs webauthn-symfony-bundle
Spomky-labs webauthn Framwork
CPEs cpe:2.3:a:spomky-labs:webauthn-lib:*:*:*:*:*:*:*:*
cpe:2.3:a:spomky-labs:webauthn-symfony-bundle:*:*:*:*:*:*:*:*
cpe:2.3:a:spomky-labs:webauthn_framwork:*:*:*:*:*:*:*:*
Vendors & Products Spomky-labs
Spomky-labs webauthn-lib
Spomky-labs webauthn-symfony-bundle
Spomky-labs webauthn Framwork
Type Values Removed Values Added
First Time appeared Web-auth
Web-auth webauthn-framework
Web-auth webauthn-lib
Web-auth webauthn-symfony-bundle
Vendors & Products Web-auth
Web-auth webauthn-framework
Web-auth webauthn-lib
Web-auth webauthn-symfony-bundle
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypassing exact origin validation
Weaknesses CWE-346
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Mar 10, 2026, 5:57 PM
Reserved
Mar 7, 2026, 5:53 PM
Status
Analyzed
Published
Mar 10, 2026, 6:18 PM
Modified
Jun 17, 2026, 10:33 AM