Vulnerability in GitLab
CVE-2026-3855
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.7 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an authenticated user with project-level permissions to access restricted file contents on the server or cause denial of service due to improper validation of parameters in the Terraform state upload functionality.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (27.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/work_items/592821 (Broken Link)
- hackerone.com/reports/3575167 (Permissions Required, technical-description, permissions-required, exploit)
- docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-2-released/ (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-3855?
- CVE-2026-3855 is a low-severity vulnerability in GitLab, classified under Resource Injection. CVSS score: 3.1/10. Published 2026-09-16.
- How severe is CVE-2026-3855?
- Low severity. CVSS v3 base score is 3.1 out of 10.