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TI-2026-04516 Aliases CVE-2026-5173GHSA-5gj7-3j23-w2h2

Exposed Dangerous Method or Function in GitLab

Priority LOW 37CWE-749Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9.6 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to invoke unintended server-side methods through websocket connections due to improper access control.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00433 37th percentileScored 2026-11-07
Fix Fixed GitLab (GitLab): 18.8.9, 18.9.5, 18.10.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
GitLabGitLab16.9.6 to before 18.8.9; 18.9 to before 18.9.5; 18.10 to before 18.10.318.8.9, 18.9.5, 18.10.3Patch availableCNA
  • GitLab VendorGitLab Affected 16.9.6 to before 18.8.9; 18.9 to before 18.9.5; 18.10 to before 18.10.3 Fixed in 18.8.9, 18.9.5, 18.10.3 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*16.9.6 to before 18.8.9; 18.9.0 to before 18.9.5; 18.10.0 to before 18.10.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*16.9.6 to before 18.8.9; 18.9.0 to before 18.9.5; 18.10.0 to before 18.10.3VulnerableGitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 16.9.6 to before 18.8.9; 18.9.0 to before 18.9.5; 18.10.0 to before 18.10.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 16.9.6 to before 18.8.9; 18.9.0 to before 18.9.5; 18.10.0 to before 18.10.3 Vulnerable ·GitLab

Remediation

  • Fix · CNA GitLab (GitLab) Fixed in 18.8.9, 18.9.5, 18.10.3

Fixed in the same release

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

  • Release ·

    GitLab 18.10.3, 18.8.9, 18.9.5

    11 records Highest priority Priority HIGH 1 HIGH, 2 MEDIUM, 8 LOW

    Other records, highest priority first

    • TI-2026-00822 Improper Validation of Specified Quantity in Input in GitLabPriority HIGH 72
    • TI-2026-01435 Incorrect Authorization in GitLabPriority MEDIUM 53
    • TI-2025-11616 Improper Validation of Specified Quantity in Input in GitLabPriority MEDIUM 40
    Show all 11 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5173
  2. 2026-10-03 Alias added: GHSA-5gj7-3j23-w2h2

References

Advisory 1

Other 1

  • 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences