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  5. GHSA-26gq-grmh-6xm6

GHSA-26gq-grmh-6xm6: Gogs vulnerable to Stored XSS via Mermaid diagrams

February 6, 2026

Stored XSS via mermaid diagrams due to usage of vulnerable renderer library

References

  • github.com/advisories/GHSA-26gq-grmh-6xm6
  • github.com/gogs/gogs
  • github.com/gogs/gogs/commit/71a72a72ad1c8cea7940c9d7e4cbdfbc0fc3d401
  • github.com/gogs/gogs/security/advisories/GHSA-26gq-grmh-6xm6
  • github.com/mermaid-js/mermaid/security/advisories/GHSA-7rqq-prvp-x9jh
  • github.com/mermaid-js/mermaid/security/advisories/GHSA-8gwm-58g9-j8pw

Code Behaviors & Features

Detect and mitigate GHSA-26gq-grmh-6xm6 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 0.13.4

Fixed versions

  • 0.13.4

Solution

Upgrade to version 0.13.4 or above.

Impact 7.3 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-1395: Dependency on Vulnerable Third-Party Component
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

go/gogs.io/gogs/GHSA-26gq-grmh-6xm6.yml

Spotted a mistake? Edit the file on GitLab.

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