CVE-2026-3857
High
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.
SeverityHigh
CVSS8.1
Exploit probability—
Product
Gitlab
PublishedMar 25, 2026
First seenMar 25, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Update
- gitlab gitlab18.8.7, 18.9.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gitlab gitlab | 17.10.0 ≤ v < 18.8.7, 18.9.0 ≤ v < 18.9.3, 18.10.0 | 18.8.7, 18.9.3 |
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