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.
Severity (CVSS)
| Base score | 5.3 |
|---|---|
| Severity | Medium |
| Version | CVSS 4.0 |
| 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 |
| Provided by | CNA |
Weaknesses
- CWE-606 — CWE-606: Unchecked Input for Loop Condition
- CWE-1322 — CWE-1322: Use of Blocking Code in Single-threaded, Non-blocking Context
Affected products
| Vendor | Product | Versions |
|---|---|---|
| mermaid-js | mermaid | >= 11.6.0, < 11.16.1 |
References
- https://github.com/mermaid-js/mermaid/security/advisories/GHSA-rhh3-jpg6-66xh (x_refsource_CONFIRM)
- https://github.com/mermaid-js/mermaid/pull/8022 (x_refsource_MISC)
- https://github.com/mermaid-js/mermaid/commit/59b22fad2b3bb04f87a476c84a8a2b24679e607e (x_refsource_MISC)
- https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.16.1 (x_refsource_MISC)
Generated from the official CVE List on 07 Aug 2026 07:02 UTC.