CVE-2025-3757: OpenPubkey Vulnerable to Authentication Bypass

May 13, 2025 (updated October 31, 2025)

Versions of OpenPubkey library prior to 0.10.0 contained a vulnerability that would allow a specially crafted JWS to bypass signature verification.

References

github.com/advisories/GHSA-537f-gxgm-3jjq
github.com/openpubkey/openpubkey
github.com/openpubkey/openpubkey/security/advisories/GHSA-537f-gxgm-3jjq
nvd.nist.gov/vuln/detail/CVE-2025-3757

Code Behaviors & Features

Detect and mitigate CVE-2025-3757 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →