What is CVE-2019-5461?

CVE-2019-5461 is a low-severity vulnerability in GitLab, classified under Improper Input Validation. CVSS score: 3.5/10. Published 2019-09-09.

How severe is CVE-2019-5461?

Low severity. CVSS v3 base score is 3.5 out of 10.

Improper input validation in GitLab

CVE-2019-5461

An input validation problem was discovered in the GitHub service integration which could result in an attacker being able to make arbitrary POST requests in a GitLab instance's internal network. This vulnerability was addressed in 12.1.2, 12.0.4, and 11.11.6.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-09-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (61.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

GitLab
GitLab Community Edition — versions Fix Versions: 12.1.2, 12.0.4, and 11.11.6

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

hackerone.com/reports/446593 (Third Party Advisory)
gitlab.com//gitlab-org/gitlab-ce/issues/54649 (Exploit, Vendor Advisory)
about.gitlab.com/2019/07/29/security-release-gitlab-12-dot-1-dot-2-released/ (Vendor Advisory)

Frequently asked questions

What is CVE-2019-5461?: CVE-2019-5461 is a low-severity vulnerability in GitLab, classified under Improper Input Validation. CVSS score: 3.5/10. Published 2019-09-09.
How severe is CVE-2019-5461?: Low severity. CVSS v3 base score is 3.5 out of 10.