Read the docs
TI-2026-07854 Aliases CVE-2026-8937GHSA-m26x-jfj3-qhfg

Missing Authorization in GitLab

Priority LOW 19CWE-862Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to read private child issue contents, including titles and descriptions, from projects they had no access to, due to missing authorization checks on linked work items within visible epics.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00227 13th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed GitLab (GitLab): 19.2.7, 19.3.3, 19.4.1

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
GitLabGitLab19.0 to before 19.2.7; 19.3 to before 19.3.3; 19.4 to before 19.4.119.2.7, 19.3.3, 19.4.1Patch availableCNA
  • GitLab VendorGitLab Affected 19.0 to before 19.2.7; 19.3 to before 19.3.3; 19.4 to before 19.4.1 Fixed in 19.2.7, 19.3.3, 19.4.1 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*19.0.0 to before 19.2.7VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*19.0.0 to before 19.2.7VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*19.3.0 to before 19.3.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*19.3.0 to before 19.3.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:19.4.0:*:*:*:community:*:*:*19.4.0VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:19.4.0:*:*:*:enterprise:*:*:*19.4.0VulnerableGitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 19.0.0 to before 19.2.7 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 19.0.0 to before 19.2.7 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 19.3.0 to before 19.3.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 19.3.0 to before 19.3.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:19.4.0:*:*:*:community:*:*:* Versions 19.4.0 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:19.4.0:*:*:*:enterprise:*:*:* Versions 19.4.0 Vulnerable ·GitLab

Remediation

  • Fix · CNA GitLab (GitLab) Fixed in 19.2.7, 19.3.3, 19.4.1

Fixed in the same release

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

  • Release ·

    GitLab 19.2.7, 19.3.3, 19.4.1

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-58246 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLabPriority MEDIUM 40
    • TI-2026-09046 Incorrect Authorization in GitLabPriority LOW 19
    • TI-2026-03928 Missing Authorization in GitLabPriority LOW 17
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-8937
  2. 2026-10-03 Alias added: GHSA-m26x-jfj3-qhfg

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