What is CVE-2021-39937?

CVE-2021-39937 is a medium-severity vulnerability in Gitlab, classified under Improper Privilege Management. CVSS score: 5.9/10. Published 2021-12-13.

How severe is CVE-2021-39937?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Privilege escalation in Gitlab

CVE-2021-39937

A collision in access memoization logic in all versions of GitLab CE/EE before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, leads to potential elevated privileges in groups and projects under rare circumstances

Vulnerability class: Privilege Escalation

EPSS: 0.008 (51.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N.

Affected products

Gitlab — versions >=0.0, <14.3.6, >=14.4, <14.4.4, >=14.5, <14.5.2

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

cve@gitlab.com (x_refsource_MISC, Broken Link)
cve@gitlab.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-39937?: CVE-2021-39937 is a medium-severity vulnerability in Gitlab, classified under Improper Privilege Management. CVSS score: 5.9/10. Published 2021-12-13.
How severe is CVE-2021-39937?: Medium severity. CVSS v3 base score is 5.9 out of 10.