Auth bypass in GitLab
CVE-2021-22253
Improper authorization in GitLab EE affecting all versions since 13.4 allowed a user who previously had the necessary access to trigger deployments to protected environments under specific conditions after the access has been removed
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.008 (55.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- GitLab — versions >=13.4, <13.12.9, >=14.0, <14.0.7, >=14.1, <14.1.2
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/323794 (Broken Link)
- hackerone.com/reports/1113783 (Permissions Required, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22253.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22253?
- CVE-2021-22253 is a medium-severity vulnerability in GitLab, classified under Incorrect Authorization. CVSS score: 4.9/10. Published 2021-08-23.
- How severe is CVE-2021-22253?
- Medium severity. CVSS v3 base score is 4.9 out of 10.