CVE-2026-71436

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 10.6.0 until 10.9.8 and 11.16.1, Mermaid XY Charts are vulnerable to an infinite loop denial of service in the setXAxisRangeData function when configuring an X-Axis with invalid parameters. Because each loop iteration appends an element to an array, this generally causes a RangeError to appear after a few seconds, but it may instead cause the page or JavaScript process to crash from memory exhaustion, depending on the environment. This issue is fixed in versions 10.9.8 and 11.16.1.

CVSS

No CVSS.

References

Link	Resource
https://github.com/mermaid-js/mermaid/commit/630aa7e5dd417e1f56bff2a1ce8df2c5ad08d289
https://github.com/mermaid-js/mermaid/commit/ef60adc837d9d5107af21285f01e83dea309bd0a
https://github.com/mermaid-js/mermaid/pull/8022
https://github.com/mermaid-js/mermaid/releases/tag/mermaid@11.16.1
https://github.com/mermaid-js/mermaid/releases/tag/v10.9.8
https://github.com/mermaid-js/mermaid/security/advisories/GHSA-2v8p-3f2j-5mp7

Configurations

No configuration.

History

23 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Mermaid es una herramienta de JavaScript que utiliza texto inspirado en Markdown para crear y modificar diagramas y gráficos. Desde la versión 10.6.0 hasta la 10.9.8 y la 11.16.1, los gráficos XY de Mermaid son vulnerables a una denegación de servicio por bucle infinito en la función setXAxisRangeData al configurar un eje X con parámetros no válidos. Debido a que cada iteración del bucle añade un elemento a un array, esto generalmente provoca que aparezca un RangeError después de unos segundos, pero en su lugar puede causar que la página o el proceso de JavaScript se bloquee por agotamiento de memoria, dependiendo del entorno. Este problema está solucionado en las versiones 10.9.8 y 11.16.1.

Information

Published : 2026-08-06 22:18

Updated : 2026-10-24 15:10

NVD link : CVE-2026-71436

Mitre link : CVE-2026-71436

CVE.ORG link : CVE-2026-71436

JSON object : View

Products Affected

No product.

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-1325

Improperly Controlled Sequential Memory Allocation

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