What is CVE-2021-39897?

CVE-2021-39897 is a low-severity vulnerability in GitLab, classified under Improper Preservation of Permissions. CVSS score: 2.6/10. Published 2021-11-05.

How severe is CVE-2021-39897?

Low severity. CVSS v3 base score is 2.6 out of 10.

Vulnerability in GitLab

CVE-2021-39897

Improper access control in GitLab CE/EE version 10.5 and above allowed subgroup members with inherited access to a project from a parent group to still have access even after the subgroup is transferred

Published 2021-11-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.010 (62.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.5% 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 — versions >=12.9, <12.9.8, >=12.10, <12.10.7, 13.0.0

Weakness classification (CWE)

CWE-281 — Improper Preservation of Permissions

References

gitlab.com/gitlab-org/gitlab/-/issues/341017 (Broken Link)
hackerone.com/reports/1330806 (Permissions Required, Third Party Advisory)
gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39897.json (Vendor Advisory)

Frequently asked questions

What is CVE-2021-39897?: CVE-2021-39897 is a low-severity vulnerability in GitLab, classified under Improper Preservation of Permissions. CVSS score: 2.6/10. Published 2021-11-05.
How severe is CVE-2021-39897?: Low severity. CVSS v3 base score is 2.6 out of 10.