Privilege escalation in GitLab
CVE-2021-22263
An issue has been discovered in GitLab affecting all versions starting from 13.0 before 14.0.9, all versions starting from 14.1 before 14.1.4, all versions starting from 14.2 before 14.2.2. A user account with 'external' status which is granted 'Maintainer' role on any project on the GitLab instance where 'project tokens' are allowed may elevate its privilege to 'Internal' and access Internal projects.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.011 (64.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- GitLab — versions >=13.0, <14.0.9, >=14.1, <14.1.4, >=14.2, <14.2.2
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/331473 (Exploit, Issue Tracking, Vendor Advisory)
- hackerone.com/reports/1193062 (Exploit, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22263.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22263?
- CVE-2021-22263 is a medium-severity vulnerability in GitLab, classified under Improper Privilege Management. CVSS score: 5.5/10. Published 2021-10-11.
- How severe is CVE-2021-22263?
- Medium severity. CVSS v3 base score is 5.5 out of 10.