What is CVE-2019-9170?

CVE-2019-9170 is a medium-severity vulnerability in GitLab, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2019-04-17.

How severe is CVE-2019-9170?

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

Auth bypass in GitLab

CVE-2019-9170

An issue was discovered in GitLab Community and Enterprise Edition before 11.6.10, 11.7.x before 11.7.6, and 11.8.x before 11.8.1. It has Incorrect Access Control.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2019-04-17 · 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: 0.015 (73.5th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.5% 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-639 — Authorization Bypass Through User-Controlled Key

References

about.gitlab.com/blog/categories/releases/ (Product, Vendor Advisory)
about.gitlab.com/2019/03/04/security-release-gitlab-11-dot-8-dot-1-released/ (Vendor Advisory)
gitlab.com/gitlab-org/gitlab-ce/issues/51971 (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2019-9170?: CVE-2019-9170 is a medium-severity vulnerability in GitLab, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2019-04-17.
How severe is CVE-2019-9170?: Medium severity. CVSS v3 base score is 5.3 out of 10.