What is CVE-2017-0926?

CVE-2017-0926 is a high-severity vulnerability in GitLab, classified under Improper Authorization. CVSS score: 8.8/10. Published 2018-03-21.

How severe is CVE-2017-0926?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in GitLab

CVE-2017-0926

Gitlab Community Edition version 10.3 is vulnerable to an improper authorization issue in the Oauth sign-in component resulting in unauthorized user login.

Published 2018-03-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.6th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

GitLab
GitLab Community And Enterprise Editions — versions 10.2.0 - 10.2.5 Fixed in 10.2.6, 10.1.0 - 10.1.5 Fixed in 10.1.6, 10.3.0 - 10.3.3 Fixed in 10.3.4
Debian Linux — versions 9.0

Weakness classification (CWE)

References

www.debian.org/security/2018/dsa-4145 (vendor-advisory, Third Party Advisory)
about.gitlab.com/2018/01/16/gitlab-10-dot-3-dot-4-released/ (Vendor Advisory)
gitlab.com/gitlab-org/gitlab-ce/issues/32198 (Exploit, Issue Tracking)

Frequently asked questions

What is CVE-2017-0926?: CVE-2017-0926 is a high-severity vulnerability in GitLab, classified under Improper Authorization. CVSS score: 8.8/10. Published 2018-03-21.
How severe is CVE-2017-0926?: High severity. CVSS v3 base score is 8.8 out of 10.