CVE-2026-71436
CVE-2026-71436 · Mermaid XY Charts are vulnerable to an infinite loop DoS
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 5.3 · Medium · EPSS 0.6% · Fix available
- Published
- Updated
Affected products and versions
mermaid
- Versions
- >= 10.6.0, < 10.9.8: Affected
- >= 11.0.0-alpha.1, < 11.16.1: Affected
No fix published
node-mermaid Debian:14
- Versions
- 8.11.0+ds+~cs29.13.22-1
- 8.13.2+ds+~cs30.13.21-1
- 8.13.2+ds+~cs30.13.21-1.1
- 8.13.3+ds+~cs26.13.21-1
- 8.13.3+ds+~cs26.13.21-2
- 8.13.8+~cs10.4.16-1
- 8.14.0+ds1+~cs11.4.14-1
- 8.14.0+~cs11.4.14-1
- 8.7.0+ds+~cs27.17.17-1
- 8.7.0+ds+~cs27.17.17-2
- 8.7.0+ds+~cs27.17.17-2~bpo10+1
- 8.7.0+ds+~cs27.17.17-3
- 8.9.1+ds+~cs26.20.25-1
- 8.9.3+ds+~cs29.13.19-1
- 9.2.2+~2.0.0-1
- 9.2.2+~2.0.0-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mermaid npm
- Affected ranges
- SEMVER: ≥ 10.6.0, < 10.9.8
Update to 10.9.8
mermaid npm
- Affected ranges
- SEMVER: ≥ 11.0.0-alpha.1, < 11.16.1
Update to 11.16.1
node-mermaid Ubuntu:22.04:LTS
- Versions
- 8.7.0+ds+~cs27.17.17-3
- 8.13.3+ds+~cs26.13.21-1
- 8.13.3+ds+~cs26.13.21-2
- 8.13.8+~cs10.4.16-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
node-mermaid Ubuntu:26.10
- Versions
- 9.2.2+~2.0.0-1
- 9.2.2+~2.0.0-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://github.com/mermaid-js/mermaid/security/advisories/GHSA-2v8p-3f2j-5mp7
- https://github.com/mermaid-js/mermaid/pull/8022
- https://github.com/mermaid-js/mermaid/commit/630aa7e5dd417e1f56bff2a1ce8df2c5ad08d289
- https://github.com/mermaid-js/mermaid/commit/ef60adc837d9d5107af21285f01e83dea309bd0a
- https://github.com/mermaid-js/mermaid/releases/tag/[email protected]
- https://github.com/mermaid-js/mermaid/releases/tag/v10.9.8
- https://nvd.nist.gov/vuln/detail/CVE-2026-71436