Gogs vulnerable to Stored XSS via Mermaid diagrams

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS No score.

Timeline

This record came from the full history of the GitHub Advisory Database, published 6 Feb 2026. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-26gq-grmh-6xm6
• OSV: GHSA-26gq-grmh-6xm6
• 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
• github.com/gogs/gogs/commit/71a72a72ad1c8cea7940c9d7e4cbdfbc0fc3d401
• github.com/gogs/gogs

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.