What is CVE-2025-0639?

CVE-2025-0639 is a medium-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2025-04-24.

How severe is CVE-2025-0639?

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

Resource exhaustion in GitLab

CVE-2025-0639

An issue has been discovered affecting service availability via issue preview in GitLab CE/EE affecting all versions from 16.7 before 17.9.7, 17.10 before 17.10.5, and 17.11 before 17.11.1.

Published 2025-04-24 · 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: 0.005 (36.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.8% 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: 0.005 · change: +0.000

Affected products

GitLab — versions 17.11.0, 17.11, 17.10

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

gitlab.com/gitlab-org/gitlab/-/issues/514507 (issue-tracking, permissions-required, Broken Link)
hackerone.com/reports/2946553 (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2025-0639?: CVE-2025-0639 is a medium-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2025-04-24.
How severe is CVE-2025-0639?: Medium severity. CVSS v3 base score is 6.5 out of 10.