Vulnerability Description
Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Prior to 10.9.6 and 11.15.0, there is a denial-of-service attack when rendering gantt charts, if they use the excludes attribute to exclude all dates. mermaid.parse is unaffected, unless you then call the ganttDb.getTasks() (which is called when rendering a diagram). This vulnerability is fixed in 10.9.6 and 11.15.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mermaid Project | Mermaid | < 10.9.6 |
Related Weaknesses (CWE)
References
- https://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151fPatch
- https://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625Patch
- https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0Release Notes
- https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6Release Notes
- https://github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxhThird Party Advisory
- https://github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxhThird Party Advisory
FAQ
What is CVE-2026-41150?
CVE-2026-41150 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Prior to 10.9.6 and 11.15.0, there is a denial-of-service attack when rendering gantt charts, if...
How severe is CVE-2026-41150?
CVE-2026-41150 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41150?
Check the references section above for vendor advisories and patch information. Affected products include: Mermaid Project Mermaid.