CVE-2023-4812
Incorrect Authorization in GitLab
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Incorrect Authorization in GitLab
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
- Record
CVE-2023-4812- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2023-54656
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
- Record
EUVD-2023-54656- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5q5j-r39w-wc64
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6...
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
- Record
GHSA-5q5j-r39w-wc64- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N - Weakness
- CWE-284, CWE-863
- Updated
- 2026-11-02
NVD
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
- Record
CVE-2023-4812- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
Incorrect Authorization in GitLab
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
- Record
CVE-2023-4812- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-4812
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
- Record
UBUNTU-CVE-2023-4812- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N - Updated
- 2026-11-02
OSVBIT-gitlab-2023-4812 No score
Incorrect Authorization in GitLab
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
- Record
BIT-gitlab-2023-4812- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-4812 is a high vulnerability (CVSS 7.6) in Gitlab, published January 12, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.51%, the 43rd percentile. Fixed in gitlab 16.5.6.