What is CVE-2020-7977?

CVE-2020-7977 is a medium-severity vulnerability in GitLab, classified under Incorrect Default Permissions. CVSS score: 5.3/10. Published 2020-02-05.

How severe is CVE-2020-7977?

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

Vulnerability in GitLab

CVE-2020-7977

GitLab EE 8.8 and later through 12.7.2 has Insecure Permissions.

Published 2020-02-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (53.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

GitLab

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

about.gitlab.com/blog/categories/releases/ (Release Notes, Vendor Advisory)
about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/ (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-7977?: CVE-2020-7977 is a medium-severity vulnerability in GitLab, classified under Incorrect Default Permissions. CVSS score: 5.3/10. Published 2020-02-05.
How severe is CVE-2020-7977?: Medium severity. CVSS v3 base score is 5.3 out of 10.