Is web-auth/webauthn-lib affected by CVE-2024-39912?

Packagist web-auth/webauthn-lib is affected in >=4.5.0 <4.9.0.

Is CVE-2024-39912 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

medium

CVE-2024-39912

Q: Is CVE-2024-39912 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

Packagist · web-auth/webauthn-lib • Packagist · web-auth/webauthn-framework

Summary

The FIDO2/Webauthn Support for PHP library allows enumeration of valid usernames

Severity: medium
EPSS: 0.4% (p31)
Also known as: GHSA-875x-g8p7-5w27#web-auth/webauthn-framework, GHSA-875x-g8p7-5w27#web-auth/webauthn-lib
Published: 2024-07-15

References

https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-875x-g8p7-5w27
https://nvd.nist.gov/vuln/detail/CVE-2024-39912
https://github.com/web-auth/webauthn-framework/commit/64de11f6cddc71e56c76e0cc4573bf94d02be045

Related advisories

CVE-2026-30964 — medium · Packagist/web-auth/webauthn-lib

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.