What is CVE-2019-15594?

CVE-2019-15594 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 4.3/10. Published 2020-02-14.

How severe is CVE-2019-15594?

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

Information disclosure in GitLab

CVE-2019-15594

GitLab 11.8 and later contains a security vulnerability that allows a user to obtain details of restricted pipelines via the merge request endpoint.

Vulnerability class: Information Disclosure

Published 2020-02-14 · 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:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.7th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% 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
GitLab — versions 12.1.2

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

about.gitlab.com/releases/2019/07/29/security-release-gitlab-12-dot-1-dot-2-rel… (Vendor Advisory)
hackerone.com/reports/507064 (Permissions Required)

Frequently asked questions

What is CVE-2019-15594?: CVE-2019-15594 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 4.3/10. Published 2020-02-14.
How severe is CVE-2019-15594?: Medium severity. CVSS v3 base score is 4.3 out of 10.