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TI-2026-02729 Aliases CVE-2026-3160GHSA-255c-fxwg-6753

Unintended Proxy or Intermediary ('Confused Deputy') in GitLab

Priority LOW 31CWE-441Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · 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 13.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to view Jira issues outside the configured project scope due to an integration filter functioning only as a display control rather than enforcing access boundaries as specified.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00224 13th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed GitLab (GitLab): 18.9.7, 18.10.6, 18.11.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
GitLabGitLab13.7 to before 18.9.7; 18.10 to before 18.10.6; 18.11 to before 18.11.318.9.7, 18.10.6, 18.11.3Patch availableCNA
  • GitLab VendorGitLab Affected 13.7 to before 18.9.7; 18.10 to before 18.10.6; 18.11 to before 18.11.3 Fixed in 18.9.7, 18.10.6, 18.11.3 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*13.7.0 to before 18.9.7VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*13.7.0 to before 18.9.7VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*18.10.0 to before 18.10.6VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*18.10.0 to before 18.10.6VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*18.11.0 to before 18.11.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*18.11.0 to before 18.11.3VulnerableGitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 13.7.0 to before 18.9.7 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 13.7.0 to before 18.9.7 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 18.10.0 to before 18.10.6 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.10.0 to before 18.10.6 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 18.11.0 to before 18.11.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.11.0 to before 18.11.3 Vulnerable ·GitLab

Remediation

  • Fix · CNA GitLab (GitLab) Fixed in 18.9.7, 18.10.6, 18.11.3

Fixed in the same release

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

  • Release ·

    GitLab 18.10.6, 18.11.3, 18.9.7

    23 records Highest priority Priority LOW 23 LOW

    Other records, highest priority first

    • TI-2026-06575 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLabPriority LOW 39
    • TI-2026-06480 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLabPriority LOW 39
    • TI-2026-05325 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLabPriority LOW 39
    Show all 23 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3160
  2. 2026-10-03 Alias added: GHSA-255c-fxwg-6753

References

Exploit 1

Other 2

  • 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