CVE-2023-4379
Incorrect Authorization in GitLab
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Code owner approval was not removed from merge requests when the target branch was updated.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- 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 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Code owner approval was not removed from merge requests when the target branch was updated.
- Record
CVE-2023-4379- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2023-54243
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Code owner approval was not removed from merge requests when the target branch was updated.
- Record
EUVD-2023-54243- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qrp8-hgrf-wv83
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 prior to 16.2...
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Code owner approval was not removed from merge requests when the target branch was updated.
- Record
GHSA-qrp8-hgrf-wv83- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/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 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Code owner approval was not removed from merge requests when the target branch was updated.
- Record
CVE-2023-4379- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Code owner approval was not removed from merge requests when the target branch was updated.
- Record
CVE-2023-4379- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N - Weakness
- CWE-863
- Updated
- 2026-11-03
OSVBIT-gitlab-2023-4379 No score
Incorrect Authorization in GitLab
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Code owner approval was not removed from merge requests when the target branch was updated.
- Record
BIT-gitlab-2023-4379- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gitlabBitnami |
15.3.0 up to 16.2.8, 16.3.0 up to 16.3.5, 16.4.0 up to 16.4.1 | 16.2.816.3.516.4.1 |
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-2023-4379 is a high vulnerability (CVSS 8.1) in Gitlab, published November 9, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 48th percentile. Fixed in gitlab 16.2.8.