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.
Metrics
Affected Vendors & Products
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Advisories
| Source | ID | Title |
|---|---|---|
 Github GHSA |
GHSA-hm8f-75xx-w2vr | sigstore CSRF possibility in OIDC authentication during signing |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 26 Jan 2026 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | sigstore has CSRF possibility in OIDC authentication during signing | |
| Weaknesses | CWE-352 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-01-26T22:21:35.047Z
Reserved: 2026-01-22T18:19:49.174Z
Link: CVE-2026-24408
Vulnrichment
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NVD
Status : Received
Published: 2026-01-26T23:16:08.973
Modified: 2026-01-26T23:16:08.973
Link: CVE-2026-24408
Redhat
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OpenCVE Enrichment
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Weaknesses