{"cve":"CVE-2026-71439","nvd":{"published":"2026-08-06T22:18:31.023","modified":"2026-10-24T15:10:00.190","status":"Awaiting Analysis","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.","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":5.3},"cvss_v3":null,"cwes":["CWE-606","CWE-1322"],"references":["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","https://github.com/mermaid-js/mermaid/security/advisories/GHSA-rhh3-jpg6-66xh"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-71439","score":0.00528,"percentile":0.44399,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-rhh3-jpg6-66xh","url":"https://osv.dev/vulnerability/GHSA-rhh3-jpg6-66xh","summary":"Mermaid radar diagrams are vulnerable to DoS","modified":"2026-09-10T03:51:14.543369107Z","packages":[{"ecosystem":"npm","name":"mermaid","purl":"pkg:npm/mermaid","ranges":[">=11.6.0 <11.16.1"],"fixed":["11.16.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}