Improperly Controlled Sequential Memory Allocation Affecting mermaid package, versions >=10.6.0 <10.9.8>=11.0.0-alpha.1 <11.16.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-MERMAID-18592327
- published8 Aug 2026
- disclosed6 Aug 2026
- creditaloisklink
Introduced: 6 Aug 2026
NewCVE-2026-71436 (opens in a new tab)How to fix?
Upgrade mermaid to version 10.9.8, 11.16.1 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 Improperly Controlled Sequential Memory Allocation in the setXAxisRangeData function when configuring an X-Axis with invalid parameters. An attacker can cause the JavaScript process or page to crash due to memory exhaustion by supplying specially crafted input that triggers an infinite loop.