Linuxfoundation Sigstore Python vulnerabilities

1 vulnerability

Known vulnerabilities in Linuxfoundation Sigstore Python, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

5CVE-2026-24408linuxfoundationsigstore-python+3
EPSS score
0.18%
sigstore-python is a Python tool for generating and verifying Sigstore signatures. Prior to version 4.2.0, the sigstore-python OAuth authentication flow is susceptible to Cross-Site Request Forgery. `_OAuthSession` creates a unique "state" and sends it as a parameter in the authentication request but the "state" in the server response seems not not be cross-checked with this value. Version 4.2.0 contains a patch for the issue.