Auth bypass in Gitlab

CVE-2021-39918

Incorrect Authorization in GitLab EE affecting all versions starting from 11.1 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows a user to add comments to a vulnerability which cannot be accessed.

Vulnerability class: Broken Access Control

EPSS: 0.007 (50.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

  • Gitlab — versions >=11.1, <14.3.6, >=14.4, <14.4.4, >=14.5, <14.5.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-39918?
CVE-2021-39918 is a low-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 3.1/10. Published 2021-12-13.
How severe is CVE-2021-39918?
Low severity. CVSS v3 base score is 3.1 out of 10.