Infinite loop Affecting mermaid package, versions <10.9.6>=11.0.0-alpha.1 <11.15.0
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Test your applications- Snyk IDSNYK-JS-MERMAID-16642040
- published12 May 2026
- disclosed11 May 2026
- creditAlois Klink
Introduced: 11 May 2026
NewCVE-2026-41150 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade mermaid to version 10.9.6, 11.15.0 or higher.
Overview
mermaid is a package for generation of diagrams and flowcharts from text in a similar manner as markdown.
Affected versions of this package are vulnerable to Infinite loop in the rendering process of Gantt charts when the excludes attribute is set to exclude all dates. An attacker can cause the application to enter an infinite loop by supplying a crafted chart configuration that excludes every day of the week.