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TI-2021-17115 Aliases CVE-2021-39885GHSA-cvqc-8rrv-whf2

Cross-site scripting in GitLab

Priority MEDIUM 40CWE-79Published · Updated

Key facts

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

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

Summary

A Stored XSS in merge request creation page in all versions of Gitlab EE starting from 13.7 before 14.1.7, all versions starting from 14.2 before 14.2.5, and all versions starting from 14.3 before 14.3.1 allows an attacker to execute arbitrary JavaScript code on the victim's behalf via malicious approval rule names

Why it matters now

EPSS 0.01134 66th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed GitLab (GitLab): 14.1.7, 14.2.5, 14.3.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
GitLabGitLab13.7 to before 14.1.7; 14.2 to before 14.2.5; 14.3 to before 14.3.114.1.7, 14.2.5, 14.3.1Patch availableCNA
  • GitLab VendorGitLab Affected 13.7 to before 14.1.7; 14.2 to before 14.2.5; 14.3 to before 14.3.1 Fixed in 14.1.7, 14.2.5, 14.3.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*13.7.0 to before 14.1.7; 14.2.0 to before 14.2.5VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:14.3.0:*:*:*:enterprise:*:*:*14.3.0VulnerableGitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 13.7.0 to before 14.1.7; 14.2.0 to before 14.2.5 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:14.3.0:*:*:*:enterprise:*:*:* Versions 14.3.0 Vulnerable ·GitLab

Remediation

  • Fix · CNA GitLab (GitLab) Fixed in 14.1.7, 14.2.5, 14.3.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39885
  2. 2026-10-03 Alias added: GHSA-cvqc-8rrv-whf2

References

Exploit 2

Advisory 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