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HIGHCVE-2026-3857Published Modified CNA GitLab

CVE-2026-3857: Cross-Site Request Forgery (CSRF) in GitLab

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.

Metrics

CVSS v3.1
8.1
Severity
HIGH
Fixed in
18.8.7
Affected Products
1

Fix available

18.8.718.9.318.10.1
Affected packages
  • GitLab / GitLab
    < 18.8.7 (from 17.10) · < 18.9.3 (from 18.9) · < 18.10.1 (from 18.10)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVE-2026-3857: Cross-Site Request Forgery (CSRF) in GitLab | HarborGuard CVE