What is CVE-2020-10083?

CVE-2020-10083 is a critical-severity vulnerability in GitLab, classified under Improper Preservation of Permissions. CVSS score: 9.1/10. Published 2020-03-13.

How severe is CVE-2020-10083?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in GitLab

CVE-2020-10083

GitLab 12.7 through 12.8.1 has Insecure Permissions. Under certain conditions involving groups, project authorization changes were not being applied.

Published 2020-03-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.7% 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-281 — Improper Preservation of Permissions

References

about.gitlab.com/releases/2020/03/04/gitlab-12-dot-8-dot-2-released/ (Release Notes, Vendor Advisory)
about.gitlab.com/releases/2020/03/04/gitlab-12-dot-8-dot-2-released/index.html (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-10083?: CVE-2020-10083 is a critical-severity vulnerability in GitLab, classified under Improper Preservation of Permissions. CVSS score: 9.1/10. Published 2020-03-13.
How severe is CVE-2020-10083?: Critical severity. CVSS v3 base score is 9.1 out of 10.