In gittuf 0.10.0 through 0.15.0, when a minimum threshold global rule and a policy rule protect the same namespace, verification gives the global rule's check over all trusted users in the policy precedence over the policy rule's own authorized users. A user listed in the policy file but not authorized by the policy rule, or fewer users than the rule's threshold, can make changes to the protected namespace that pass verification.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
gittuf gittuf unaffected
Version Status Constraints
0.10.0 affected < 0.16.0

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Upgrade to gittuf 0.16.0 or later, which checks policy rules and global rules independently. Then re-run verification on the repository to make sure the vulnerability was not exploited.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/gittuf/gittuf/releases/tag/v0.16.0 cve-icon
https://github.com/gittuf/gittuf/security/advisories/GHSA-qc8j-pcph-6q9x cve-icon
History

Fri, 13 Nov 2026 15:30:00 +0000

Type Values Removed Values Added
Description In gittuf 0.10.0 through 0.15.0, when a minimum threshold global rule and a policy rule protect the same namespace, verification gives the global rule's check over all trusted users in the policy precedence over the policy rule's own authorized users. A user listed in the policy file but not authorized by the policy rule, or fewer users than the rule's threshold, can make changes to the protected namespace that pass verification.
Title gittuf: Policy rules bypassed in the presence of global rules
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Akrites

Published:

Updated: 2026-11-13T15:20:38.824Z

Reserved: 2026-11-12T20:36:23.291Z

Link: CVE-2026-128037

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses