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TI-2026-03771 Aliases CVE-2026-4332GHSA-26q6-hm4f-j23h

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

Priority LOW 24CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

GitLab has remediated an issue in GitLab EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that, in customizable analytics dashboards, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browsers due to improper input sanitization.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0029 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
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
GitLabGitLab18.2 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 18.2 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 · 1

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*18.2.0 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 18.2.0 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-2026-4332
  2. 2026-10-03 Alias added: GHSA-26q6-hm4f-j23h

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