CVE-2021-39945 - CVE House
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Status published Low CVE-2021-39945

Improper access control in the GitLab CE/EE API affecting all...

Vulnerability Description

Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Thanks @muthu_prakash for reporting this vulnerability through our HackerOne bug bounty program

References

More from GitLab

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CVE-2025-9642
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CVE-2025-9484
Missing Authorization in GitLab
Medium 4.3

Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
>=14.5, <14.5.2, >=14.4, <14.4.4, >=9.4, <14.3.6

Timeline

Official Publish: December 13th, 2021
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.