Linuxfoundation Sigstore-python vulnerabilities

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Published CVEs affecting Linuxfoundation Sigstore-python: 1 record(s), with affected versions and fixes.
cpe:2.3:a:linuxfoundation:sigstore-python

CVE-2026-24408 Medium · 5.0 CWE-352 Jan 26, 2026

sigstore has CSRF possibility in OIDC authentication during signing

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.