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TI-2026-04244 Aliases CVE-2026-4868GHSA-64q9-48cg-f6vv

Authorization Bypass Through User-Controlled Key in GitLab

Priority LOW 38CWE-639Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under certain conditions, could have allowed an authenticated user to cause specific Duo AI workflows to run under another user's identity due to improper user identity resolution when triggering Duo AI workflow runners.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00427 37th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed GitLab (GitLab): 18.10.7, 18.11.4, 19.0.1

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
GitLabGitLab18.8 to before 18.10.7; 18.11 to before 18.11.4; 19.0 to before 19.0.118.10.7, 18.11.4, 19.0.1Patch availableCNA
  • GitLab VendorGitLab Affected 18.8 to before 18.10.7; 18.11 to before 18.11.4; 19.0 to before 19.0.1 Fixed in 18.10.7, 18.11.4, 19.0.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*18.8.0 to before 18.10.7; 18.11.0 to before 18.11.4VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:19.0.0:*:*:*:enterprise:*:*:*19.0.0VulnerableGitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.8.0 to before 18.10.7; 18.11.0 to before 18.11.4 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:19.0.0:*:*:*:enterprise:*:*:* Versions 19.0.0 Vulnerable ·GitLab

Remediation

  • Fix · CNA GitLab (GitLab) Fixed in 18.10.7, 18.11.4, 19.0.1

Fixed in the same release

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

  • Release ·

    GitLab 18.10.7, 18.11.4, 19.0.1

    6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-05886 Incorrect Authorization in GitLabPriority MEDIUM 63
    • TI-2026-01101 Allocation of Resources Without Limits or Throttling in GitLabPriority MEDIUM 62
    • TI-2026-02221 Missing Authorization in GitLabPriority MEDIUM 53
    Show all 6 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4868
  2. 2026-10-03 Alias added: GHSA-64q9-48cg-f6vv

References

Exploit 1

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