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CVE-2026-24408

CVE-2026-24408 · sigstore has CSRF possibility in OIDC authentication during signing

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 0.0 · Low · EPSS 0.2% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • sigstore-python

    Versions
    • < 4.2.0: Affected

    No fix published

  • sigstore PyPI

    Versions
    • 0.0.1rc1
    • 0.0.1rc2
    • 0.0.1rc3
    • 0.1.0
    • 0.10.0
    • 0.2.0
    • 0.3.1
    • 0.4.0
    • 0.4.1
    • 0.4.2
    • 0.5.0
    • 0.5.1
    • 0.5.1rc1
    • 0.5.1rc2
    • 0.6.1
    • 0.6.2
    • 0.6.3
    • 0.6.4
    • 0.6.5
    • 0.6.6
    • 0.6.7
    • 0.6.8
    • 0.7.0
    • 0.8.3
    • 0.9.0
    • 1.0.0
    • 1.0.0rc1
    • 1.1.0
    • 1.1.1
    • 1.1.1rc1
    • 1.1.2
    • 1.1.2rc1
    • 2.0.0
    • 2.0.0rc1
    • 2.0.0rc2
    • 2.0.0rc3
    • 2.0.1
    • 2.1.0
    • 2.1.2
    • 2.1.3
    • 2.1.5
    • 3.0.0
    • 3.0.0rc1
    • 3.0.0rc2
    • 3.1.0
    • 3.2.0
    • 3.3.0
    • 3.4.0
    • 3.5.0
    • 3.5.1
    • 3.5.3
    • 3.5.6
    • 3.6.0
    • 3.6.1
    • 3.6.2
    • 3.6.3
    • 3.6.4
    • 3.6.5
    • 3.6.6
    • 3.6.7
    • 4.0.0
    • 4.1.0
    Affected ranges
    • ECOSYSTEM: < 4.2.0

    Update to 4.2.0

Original sources

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