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CVE-2026-71439

CVE-2026-71439 · Mermaid radar diagrams are vulnerable to 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 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.

CVSS 5.3 · Medium · EPSS 0.5% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • mermaid

    Versions
    • >= 11.6.0, < 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: ≥ 11.6.0, < 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

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