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TI-2026-03343 Aliases CVE-2026-3857GHSA-hv8g-9cgr-4hmc

Cross-Site Request Forgery (CSRF) in GitLab

Priority LOW 39CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-352.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00215 11th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed GitLab (GitLab): 18.8.7, 18.9.3, 18.10.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GitLabGitLab17.10 to before 18.8.7; 18.9 to before 18.9.3; 18.10 to before 18.10.118.8.7, 18.9.3, 18.10.1Patch availableCNA
  • GitLab VendorGitLab Affected 17.10 to before 18.8.7; 18.9 to before 18.9.3; 18.10 to before 18.10.1 Fixed in 18.8.7, 18.9.3, 18.10.1 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*17.10.0 to before 18.8.7VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*17.10.0 to before 18.8.7VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*18.9.0 to before 18.9.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*18.9.0 to before 18.9.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:18.10.0:*:*:*:community:*:*:*18.10.0VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:18.10.0:*:*:*:enterprise:*:*:*18.10.0VulnerableGitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 17.10.0 to before 18.8.7 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 17.10.0 to before 18.8.7 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 18.9.0 to before 18.9.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.9.0 to before 18.9.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:18.10.0:*:*:*:community:*:*:* Versions 18.10.0 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:18.10.0:*:*:*:enterprise:*:*:* Versions 18.10.0 Vulnerable ·GitLab

Remediation

  • Fix · CNA GitLab (GitLab) Fixed in 18.8.7, 18.9.3, 18.10.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    GitLab 18.10.1, 18.8.7, 18.9.3

    11 records Highest priority Priority MEDIUM 1 MEDIUM, 10 LOW

    Other records, highest priority first

    • TI-2025-11962 Improper Validation of Specified Quantity in Input in GitLabPriority MEDIUM 62
    • TI-2026-03452 Inefficient Algorithmic Complexity in GitLabPriority LOW 39
    • TI-2026-02350 Authentication Bypass Using an Alternate Path or Channel in GitLabPriority LOW 37

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3857
  2. 2026-10-03 Alias added: GHSA-hv8g-9cgr-4hmc
  3. 2026-10-25 Priority changed: MEDIUM → LOW

References

  • TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-58817 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2023-06425 Weak Password Recovery Mechanism for Forgotten Password in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-05191 Code injection in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-05161 Server-side request forgery in GitLab KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-02763 Injection in GitLab CVSS 3.1CRITICAL 9.9
See all 1506 →

Sources