What is CVE-2018-17975?

CVE-2018-17975 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 5.3/10. Published 2018-12-04.

How severe is CVE-2018-17975?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in GitLab

CVE-2018-17975

An issue was discovered in GitLab Community Edition 11.x before 11.1.8, 11.2.x before 11.2.5, and 11.3.x before 11.3.2. There is Information Exposure via the GFM markdown API.

Vulnerability class: Information Disclosure

Published 2018-12-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (65.3th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

GitLab

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

gitlab.com/gitlab-org/gitlab-ce/issues/50744 (Exploit, Issue Tracking, Vendor Advisory)
about.gitlab.com/2018/10/05/critical-security-release-11-3-4/ (Vendor Advisory)

Frequently asked questions

What is CVE-2018-17975?: CVE-2018-17975 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 5.3/10. Published 2018-12-04.
How severe is CVE-2018-17975?: Medium severity. CVSS v3 base score is 5.3 out of 10.