Vulnerability in GitLab
CVE-2025-9958
An issue has been discovered in GitLab CE/EE affecting all versions from 14.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1, that could have allowed Guest users to access sensitive information stored in virtual registry configurations.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- GitLab — versions 18.4.0, 18.3, 18.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/gitlab-org/gitlab/-/issues/567777 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/3323573 (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2025-9958?
- CVE-2025-9958 is a high-severity vulnerability in GitLab, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 7.7/10. Published 2025-09-26.
- How severe is CVE-2025-9958?
- High severity. CVSS v3 base score is 7.7 out of 10.
- Is CVE-2025-9958 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.