{"id":"GHSA-rhh3-jpg6-66xh","revision":"a30dba41c8ab46a78df9b3876713ce5c","records":[{"revision":"a30dba41c8ab46a78df9b3876713ce5c","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-rhh3-jpg6-66xh","aliases":["CVE-2026-71439"],"title":"Mermaid radar diagrams are vulnerable to DoS","description":"### Impact\n\nMermaid radar diagrams allow arbitrary large values for `ticks`, which can cause high CPU usage, freezing the webpage/JavaScript process for long periods of time, until the process is eventually killed due to OOM/running out of memory.\n\n#### Proof-of-concept\n\n```txt\nradar-beta\n  axis a, b\n  curve c {1, 1}\n  ticks 1000000000\n```\n\n### Patches\n\n_Has the problem been patched? What versions should users upgrade to?_\n\nThis problem has been patched by https://github.com/mermaid-js/mermaid/commit/59b22fad2b3bb04f87a476c84a8a2b24679e607e, which was released in [Mermaid v11.16.1](https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.16.1)\n\n### Workarounds\n\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nThere are no known workarounds without updating to a patched version of mermaid.\n\n### References\n\n_Are there any links users can visit to find out more?_\n\n- https://github.com/mermaid-js/mermaid/commit/59b22fad2b3bb04f87a476c84a8a2b24679e607e\n- https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.16.1","state":0,"publishedAt":"2026-08-06T20:01:07+00:00","modifiedAt":"2026-09-10T03:51:14.5433691+00:00","affected":[{"ecosystem":"npm","name":"mermaid","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"11.6.0"},{"kind":"fixed","version":"11.16.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","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","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/mermaid-js/mermaid/security/advisories/GHSA-rhh3-jpg6-66xh","https://github.com/mermaid-js/mermaid/pull/8022","https://github.com/mermaid-js/mermaid/commit/59b22fad2b3bb04f87a476c84a8a2b24679e607e","https://github.com/mermaid-js/mermaid","https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.16.1"],"sourceUrl":"https://github.com/advisories/GHSA-rhh3-jpg6-66xh","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-rhh3-jpg6-66xh","identifiers":["GHSA-rhh3-jpg6-66xh","CVE-2026-71439"]},"retained":false,"historicalAffected":[]}],"coverage":[]}