GHSA-6m6c-36f7-fhxhMediumCVSS 5.3
Mermaid Gantt Charts are vulnerable to an Infinite Loop DoS
🔗 CVE IDs covered (1)
📋 Description
Impact
Mermaid v11.14.0 and earlier are vulnerable to a denial-of-service attack when rendering gantt charts, if they use the excludes attribute to exclude all dates.
Example:
gantt
excludes monday,tuesday,wednesday,thursday,friday,saturday,sunday
DoS :2025-01-01, 1d
mermaid.parse is unaffected, unless you then call the ganttDb.getTasks() (which is called when rendering a diagram).
Patches
This has been patched in:
- v11.15.0 (see faafb5d49106dd32c367f3882505f2dd625aa30e)
- v10.9.6 (see a59ea56174712ee5430dfd5bc877cb5151f501a6)
Workarounds
There are no workarounds available without updating to a newer version of mermaid.
🎯 Affected products2
- npm/mermaid:>= 11.0.0-alpha.1, <= 11.14.0
- npm/mermaid:<= 10.9.5
🔗 References (7)
- https://github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxh
- https://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6
- https://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30e
- https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0
- https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6
- https://nvd.nist.gov/vuln/detail/CVE-2026-41150
- https://github.com/advisories/GHSA-6m6c-36f7-fhxh