CVE-2021-38299: Improper Access Control in Webauthn Framework

critical Affects web-auth/webauthn-framework. Feed 2026.10.29.3, updated 2026-10-29; published 2021-09-29; advisory modified 2024-02-17.

Improper Access Control in Webauthn Framework

Package: web-auth/webauthn-framework Composer
Affected versions: >=3.3.0 and <3.3.4
Fixed in: 3.3.4
Severity: critical CVSS 9.8
Exploitation: not on CISA KEV · EPSS 2% (78.4th percentile)
Published: 2021-09-29
Source: osv.dev

References

CWE-863

NVD record web-auth/webauthn-framework advisories

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Related advisories

CVE-2024-39912 medium The FIDO2/Webauthn Support for PHP library allows enumeration of valid usernames same package: web-auth/webauthn-framework
CVE-2026-30964 medium Webauthn Framework: allowed_origins collapses URL-like origins to host-only values, bypass same package: web-auth/webauthn-framework
GHSA-h4fw-6r7f-w494 low Webauthn has a User Verification Downgrade via Default-Open ClientOverridePolicy same package: web-auth/webauthn-framework
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