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[GHSA] GHSA-2v8p-3f2j-5mp7 (medium) — Mermaid XY Charts are vulnerable to an infinite loop DoS

highgithub_advisoriesPublished 2026-08-06

GHSA-2v8p-3f2j-5mp7 Severity: medium CVE: CVE-2026-71436

Mermaid XY Charts are vulnerable to an infinite loop DoS

### Impact

Mermaid XY Charts are vulnerable to an infinite loop DoS attack in the `setXAxisRangeData()`, when configuring an X-Axis with invalid parameters.

As each loop appends an element to an array, this would generally only cause an `RangeError: Invalid array length` to appear

MITRE ATT&CK techniques

Indicators of compromise

Original source: https://github.com/advisories/GHSA-2v8p-3f2j-5mp7