Auth bypass in Gitlab

CVE-2021-39879

Missing authentication in all versions of GitLab CE/EE since version 7.11.0 allows an attacker with access to a victim's session to disable two-factor authentication

Vulnerability class: Broken Authentication

EPSS: 0.004 (33.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.2 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N.

Affected products

  • Gitlab — versions >=7.11.0, <14.1.7

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-39879?
CVE-2021-39879 is a low-severity vulnerability in Gitlab, classified under Missing Authentication for Critical Function. CVSS score: 2.2/10. Published 2021-10-04.
How severe is CVE-2021-39879?
Low severity. CVSS v3 base score is 2.2 out of 10.