Resource exhaustion in GitLab
CVE-2025-5996
An issue has been discovered in GitLab CE/EE affecting all versions from 2.1.0 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. A lack of input validation in HTTP responses could allow an authenticated user to cause denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.000
Affected products
- GitLab — versions 2.10, 17.11, 18.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/gitlab-org/gitlab/-/issues/476671 (issue-tracking, Exploit, permissions-required, Issue Tracking)
- gitlab.com/gitlab-org/gitlab/-/issues/483150 (issue-tracking, permissions-required, Broken Link)
- gitlab.com/gitlab-org/gitlab/-/issues/479167 (issue-tracking, Exploit, permissions-required, Issue Tracking)
- gitlab.com/gitlab-org/gitlab/-/issues/483111 (issue-tracking, Exploit, permissions-required, Issue Tracking)
- gitlab.com/gitlab-org/gitlab/-/issues/498649 (issue-tracking, permissions-required, Broken Link)
Frequently asked questions
- What is CVE-2025-5996?
- CVE-2025-5996 is a medium-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2025-06-12.
- How severe is CVE-2025-5996?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-5996 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.