What is CVE-2023-3917?

CVE-2023-3917 is a medium-severity vulnerability in GitLab, classified under CWE-1287. CVSS score: 4.3/10. Published 2023-09-29.

How severe is CVE-2023-3917?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in GitLab

CVE-2023-3917

Denial of Service in pipelines affecting all versions of Gitlab EE and CE prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1 allows attacker to cause pipelines to fail.

Published 2023-09-29 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.008 (54.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

GitLab — versions 16.4, 0, 16.4.0

Weakness classification (CWE)

CWE-1287

References

gitlab.com/gitlab-org/gitlab/-/issues/417896 (issue-tracking, permissions-required, Broken Link)
hackerone.com/reports/2055158 (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2023-3917?: CVE-2023-3917 is a medium-severity vulnerability in GitLab, classified under CWE-1287. CVSS score: 4.3/10. Published 2023-09-29.
How severe is CVE-2023-3917?: Medium severity. CVSS v3 base score is 4.3 out of 10.