Auth bypass in GitLab
CVE-2021-39936
Improper access control in GitLab CE/EE affecting all versions starting from 10.7 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 an attacker in possession of a deploy token to access a project's disabled wiki.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.010 (62.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% 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 >=10.7, <14.3.6, >=14.4, <14.4.4, >=14.5, <14.5.2
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/241767 (Broken Link)
- hackerone.com/reports/964057 (Permissions Required, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39936.json (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-39936?
- CVE-2021-39936 is a low-severity vulnerability in GitLab, classified under Incorrect Authorization. CVSS score: 3.5/10. Published 2021-12-13.
- How severe is CVE-2021-39936?
- Low severity. CVSS v3 base score is 3.5 out of 10.