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Vulnerabilities CVE-2026-71439

CVE-2026-71439

Medium
Open
TLP:CLEAR

Mermaid radar diagrams are vulnerable to DoS

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Description

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 11.6.0 until 11.16.1, Mermaid Radar Diagrams allow arbitrary large values for the ticks parameter, which can cause high CPU usage and freeze the rendering webpage or JavaScript process for long periods of time, potentially until the process is killed from memory exhaustion. This issue is fixed in version 11.16.1.

Details

CVSS Score
5.3
EPSS Score
0.39%

31.9th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
Confidence
90%
Published
Aug 6, 2026
Last Modified
Aug 7, 2026
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