GHSA-gq4g-fpc9-vjfq: Webauthn: SimpleFakeCredentialGenerator with an empty secret produces predictable fake credentials, weakening username enumeration protection

low Affects web-auth/webauthn-lib. Feed 2026.10.29.3, updated 2026-10-29; published 2026-07-07; advisory modified 2026-09-10.

Webauthn: SimpleFakeCredentialGenerator with an empty secret produces predictable fake credentials, weakening username enumeration protection

Package: web-auth/webauthn-lib Composer
Affected versions: >=4.9.0 and <5.3.5
Fixed in: 5.3.5
Severity: low
Exploitation: not on CISA KEV
Published: 2026-07-07
Source: osv.dev

References

CWE-204 CWE-330

NVD record web-auth/webauthn-lib advisories

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