CVE-2025-5101

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.

CVSS v3.1

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, 3th percentile

Published

2025-08-27

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2025-5100
• CVE-2025-51040
• CVE-2025-5099
• CVE-2025-51044
• CVE-2025-5098
• CVE-2025-51045