Resource exhaustion in GitLab
CVE-2023-0921
A lack of length validation in GitLab CE/EE affecting all versions from 8.3 before 15.10.8, 15.11 before 15.11.7, and 16.0 before 16.0.2 allows an authenticated attacker to create a large Issue description via GraphQL which, when repeatedly requested, saturates CPU usage.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.844 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.844 · newest: 0.844 · change: 0.000
Affected products
- GitLab — versions >=8.3, <15.10.8, >=15.11, <15.11.7, >=16.0, <16.0.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/gitlab-org/gitlab/-/issues/392433 (Issue Tracking, Vendor Advisory)
- hackerone.com/reports/1869839 (Permissions Required, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0921.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-0921?
- CVE-2023-0921 is a medium-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2023-06-06.
- How severe is CVE-2023-0921?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2023-0921 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.