CVE-2023-5198
Incorrect Authorization in GitLab
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Incorrect Authorization in GitLab
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
- Record
CVE-2023-5198- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2023-57529
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
- Record
EUVD-2023-57529- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8f5w-v7hr-cxv5
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions...
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
- Record
GHSA-8f5w-v7hr-cxv5- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-284, CWE-863
- Updated
- 2026-11-02
NVD
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
- Record
CVE-2023-5198- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/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 affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
- Record
CVE-2023-5198- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-5198
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
- Record
UBUNTU-CVE-2023-5198- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVBIT-gitlab-2023-5198No score
Incorrect Authorization in GitLab
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
- Record
BIT-gitlab-2023-5198- 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-2023-5198 is a medium vulnerability (CVSS 4.3) in Gitlab, published September 29, 2023. 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 16.2.8.