{"id":"GHSA-6m6c-36f7-fhxh","revision":null,"records":[{"revision":"930da8ff5868464d95b537b0ca8fce07","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-41150","aliases":[],"title":"Mermaid Gantt Charts are vulnerable to an Infinite Loop DoS","description":"Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Prior to 10.9.6 and 11.15.0, there is a denial-of-service attack when rendering gantt charts, if they use the excludes attribute to exclude all dates. mermaid.parse is unaffected, unless you then call the ganttDb.getTasks() (which is called when rendering a diagram). This vulnerability is fixed in 10.9.6 and 11.15.0.","state":0,"publishedAt":"2026-05-29T13:54:52.157+00:00","modifiedAt":"2026-05-29T16:17:31.324+00:00","affected":[{"ecosystem":"Vendor product","name":"mermaid","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"mermaid-js\",\n                    \"product\": \"mermaid\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 11.0.0-alpha.1, < 11.15.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"< 10.9.6\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"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","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxh","https://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6","https://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30e","https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0","https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-41150","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-41150","identifiers":["CVE-2026-41150"]},"retained":false,"historicalAffected":[]},{"revision":"956045a9529f4a588519102b80e5d99c","observedAt":"2026-11-15T12:03:08.728+00:00","statement":{"source":"euvd","id":"EUVD-2026-33325","aliases":["CVE-2026-41150","GHSA-6m6c-36f7-fhxh"],"title":"Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. 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Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-41150","identifiers":["CVE-2026-41150"]},"retained":false,"historicalAffected":[]},{"revision":"763ec347109e47cca1780ad9bff0ba10","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-6m6c-36f7-fhxh","aliases":["CVE-2026-41150"],"title":"Mermaid Gantt Charts are vulnerable to an Infinite Loop DoS","description":"### Impact\n\nMermaid v11.14.0 and earlier are vulnerable to a denial-of-service attack when rendering gantt charts, if they use the [`excludes` attribute](https://mermaid.js.org/syntax/gantt.html?#excludes) to exclude all dates.\n\nExample:\n\n```\ngantt\n  excludes monday,tuesday,wednesday,thursday,friday,saturday,sunday\n  DoS :2025-01-01, 1d\n```\n\n`mermaid.parse` is unaffected, unless you then call the `ganttDb.getTasks()` (which is called when rendering a diagram).\n\n### Patches\n\nThis has been patched in:\n\n- [v11.15.0](https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0) (see [faafb5d49106dd32c367f3882505f2dd625aa30e](https://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30e))\n- [v10.9.6](https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6) (see [a59ea56174712ee5430dfd5bc877cb5151f501a6](https://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6))\n\n### Workarounds\n\nThere are no workarounds available without updating to a newer version of mermaid.","state":0,"publishedAt":"2026-05-11T19:36:55+00:00","modifiedAt":"2026-09-10T03:50:45.8061973+00:00","affected":[{"ecosystem":"npm","name":"mermaid","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"11.0.0-alpha.1"},{"kind":"fixed","version":"11.15.0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"mermaid","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"10.9.6"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":null,"severity":null},{"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-6m6c-36f7-fhxh","https://nvd.nist.gov/vuln/detail/CVE-2026-41150","https://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6","https://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30e","https://github.com/mermaid-js/mermaid","https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0","https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6"],"sourceUrl":"https://github.com/advisories/GHSA-6m6c-36f7-fhxh","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-6m6c-36f7-fhxh","identifiers":["GHSA-6m6c-36f7-fhxh","CVE-2026-41150"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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