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.

Affected

GitLab

CVSS v3.1 GITLAB

5.0 MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N

EPSS

0.13% chance of exploitation in the next 30 days, 2nd percentile

Published

2025-08-27

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3124199

References

• CVE Record
• NVD entry