What is CVE-2025-1516?

CVE-2025-1516 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-2025-1516?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in GitLab

CVE-2025-1516

An issue has been discovered in GitLab CE/EE affecting all versions from 8.7 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. Improper input validation in Tokens Names could be used to trigger a denial of service.

Published 2025-06-12 · last modified 2026-06-17.

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: 0.004 (33.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

GitLab — versions 8.7, 17.11, 18.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

gitlab.com/gitlab-org/gitlab/-/issues/520553 (issue-tracking, permissions-required, Broken Link)
hackerone.com/reports/2991435 (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2025-1516?: CVE-2025-1516 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-2025-1516?: Medium severity. CVSS v3 base score is 6.5 out of 10.