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CVE-2026-41150

Published: May 29, 2026

Modified: May 29, 2026

PUBLISHED

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.

Vendor	Product	Versions
mermaid-js	mermaid	affected `>= 11.0.0-alpha.1, < 11.15.0` affected `< 10.9.6`

Weaknesses (CWE)

References

https://github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxh

x_refsource_CONFIRM

https://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6

x_refsource_MISC

https://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30e

x_refsource_MISC

https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0

x_refsource_MISC

https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6

x_refsource_MISC

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