CVE-2025-5101
Improper Control of Generation of Code ('Code Injection') in GitLab
An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Improper Control of Generation of Code ('Code Injection') in GitLab
An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.
- Record
CVE-2025-5101- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N - Weakness
- CWE-94
- Updated
- 2026-11-02
EUVDEUVD-2025-25949
An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.
- Record
EUVD-2025-25949- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3c57-hg33-rhrp
An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18...
An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.
- Record
GHSA-3c57-hg33-rhrp- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N - Weakness
- CWE-94
- Updated
- 2026-11-02
NVD
An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.
- Record
CVE-2025-5101- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N - Weakness
- CWE-94
- Updated
- 2026-11-02
OSV
Improper Control of Generation of Code ('Code Injection') in GitLab
An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.
- Record
CVE-2025-5101- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N - Weakness
- CWE-94
- Updated
- 2026-11-02
OSVBIT-gitlab-2025-5101 No score
Improper Control of Generation of Code ('Code Injection') in GitLab
An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.
- Record
BIT-gitlab-2025-5101- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gitlabBitnami |
before 18.1.5, 18.2.0 up to 18.2.5, 18.3.0 up to 18.3.1 | 18.1.518.2.518.3.1 |
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-2025-5101 is a medium vulnerability (CVSS 5.0) in Gitlab, published August 27, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. Fixed in gitlab 18.1.5.