Resource exhaustion in Gitlab
CVE-2025-2934
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 5.2 prior to 18.2.8, 18.3 prior to 18.3.4, and 18.4 prior to 18.4.2 that could have allowed an authenticated attacker to create a denial of service condition by configuring malicious webhook endpoints that send crafted HTTP responses.
EPSS: 0.005 (39.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Gitlab — versions 5.2, 18.3, 18.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@gitlab.com (Release Notes, Vendor Advisory)
- cve@gitlab.com (issue-tracking, permissions-required, Broken Link)
- cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2025-2934?
- CVE-2025-2934 is a medium-severity vulnerability in Gitlab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2025-10-09.
- How severe is CVE-2025-2934?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2025-2934 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.