What is CVE-2019-12431?

CVE-2019-12431 is a medium-severity vulnerability in GitLab. CVSS score: 4.3/10. Published 2020-03-10.

How severe is CVE-2019-12431?

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

Vulnerability in GitLab

CVE-2019-12431

An issue was discovered in GitLab Community and Enterprise Edition 8.13 through 11.11. Restricted users could access the metadata of private milestones through the Search API. It has Improper Access Control.

Published 2020-03-10 · 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 (54.5th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.5% 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

References

about.gitlab.com/blog/categories/releases/ (Release Notes, Vendor Advisory)
about.gitlab.com/releases/2019/06/03/security-release-gitlab-11-dot-11-dot-1-re… (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2019-12431?: CVE-2019-12431 is a medium-severity vulnerability in GitLab. CVSS score: 4.3/10. Published 2020-03-10.
How severe is CVE-2019-12431?: Medium severity. CVSS v3 base score is 4.3 out of 10.