CVE-2026-71439
Publication date 7 August 2026
Last updated 7 August 2026
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| node-mermaid | 26.04 LTS resolute | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v4.0
Base score
5.3 · Medium
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
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-71439
- https://github.com/mermaid-js/mermaid/security/advisories/GHSA-rhh3-jpg6-66xh
- https://github.com/mermaid-js/mermaid/commit/59b22fad2b3bb04f87a476c84a8a2b24679e607e
- https://github.com/mermaid-js/mermaid/pull/8022
- https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.16.1