A XSS exists in Gitlab CE/EE < 12.1.10 in the Mermaid plugin.
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
A XSS exists in Gitlab CE/EE < 12.1.10 in the Mermaid plugin.
Why it matters now
EPSS 0.00763 55th percentileScored 2026-11-07
Fix Fixed Gitlab CE/EE (GitLab): 12.1.10
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GitLab | Gitlab CE/EE | before 12.1.10 | 12.1.10 | Patch available | CNA |
- Gitlab CE/EE VendorGitLab Affected before 12.1.10 Fixed in 12.1.10 Patch available CNA
Remediation
- Fix · CNA Gitlab CE/EE (GitLab) Fixed in 12.1.10
Timeline
- 2026-10-02 Threatist record created from CVE-2019-15586
- 2026-10-03 Alias added: GHSA-vm62-p48h-5h9h
References
More Gitlab vulnerabilities
- 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
Sources
- CVE-2019-15586 · CVE Program
- CVE-2019-15586 · NVD
- FIRST EPSS
- GHSA-vm62-p48h-5h9h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences