CVE-2026-128037

gittuf: Policy rules bypassed in the presence of global rules

Published Nov 13, 2026 CVSS 3.1 · 6.5 Medium EPSS n/a KEV · Not listed
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.

Remediation

Vendor 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.

Tracking

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Advisories

No advisories available
History
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'}

Subscriptions

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Weaknesses

Sources

Status
PUBLISHED
Assigner
Akrites
Published
Updated
Nov 13, 2026, 3:20 PM
Reserved
Nov 12, 2026, 8:36 PM
Status
Deferred
Published
Nov 13, 2026, 4:18 PM
Modified
Nov 13, 2026, 4:18 PM