What is CVE-2018-18648?

CVE-2018-18648 is a high-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 7.5/10. Published 2018-12-04.

How severe is CVE-2018-18648?

High severity. CVSS v3 base score is 7.5 out of 10.

Information disclosure in GitLab

CVE-2018-18648

An issue was discovered in GitLab Community and Enterprise Edition before 11.2.7, 11.3.x before 11.3.8, and 11.4.x before 11.4.3. It has Information Exposure Through an Error Message.

Vulnerability class: Information Disclosure

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

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.015 (72.6th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

GitLab

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

gitlab.com/gitlab-org/gitlab-ce/issues/50975 (Exploit, Issue Tracking, Vendor Advisory)
about.gitlab.com/2018/10/29/security-release-gitlab-11-dot-4-dot-3-released/ (Vendor Advisory)

Frequently asked questions

What is CVE-2018-18648?: CVE-2018-18648 is a high-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 7.5/10. Published 2018-12-04.
How severe is CVE-2018-18648?: High severity. CVSS v3 base score is 7.5 out of 10.