CVE-2026-41150
Mermaid Gantt Charts are vulnerable to an Infinite Loop DoS
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-835 |
| Vendor | mermaid-js |
| Product | mermaid |
| Published | May 29, 2026 |
| Last Updated | May 29, 2026 |
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Affected Versions
mermaid-js / mermaid
>= 11.0.0-alpha.1, < 11.15.0 < 10.9.6
References
github.com: https://github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxh github.com: https://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6 github.com: https://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30e github.com: https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0 github.com: https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6