Auth bypass in GitLab
CVE-2025-1754
An issue has been discovered in GitLab CE/EE affecting all versions from 17.2 before 17.11.5, 18.0 before 18.0.3, and 18.1 before 18.1.1 that could have allowed unauthenticated attackers to upload arbitrary files to public projects by sending crafted API requests, potentially leading to resource abuse and unauthorized content storage.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000
Affected products
- GitLab — versions 18.1, 18.1.0, 17.2
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/521619 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/3009067 (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2025-1754?
- CVE-2025-1754 is a medium-severity vulnerability in GitLab, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2025-06-26.
- How severe is CVE-2025-1754?
- Medium severity. CVSS v3 base score is 5.3 out of 10.