CVE-2026-3857
Cross-Site Request Forgery (CSRF) in GitLab
8.8
HIGH
CVSS 3.1
EPSS 0.01%
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to execute arbitrary GraphQL mutations on behalf of authenticated users due to insufficient CSRF protection.
How to fix CVE-2026-3857
To remediate CVE-2026-3857, upgrade the affected package to a fixed version below.
- —upgrade to 18.8.7 or later
Is CVE-2026-3857 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 17.10.0, < 18.8.7, >= 18.9.0, < 18.9.3, >= 18.10.0, < 18.10.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |