{"id":"CVE-2026-41150","aliases":["DEBIAN-CVE-2026-41150","EUVD-2026-33325","GHSA-6m6c-36f7-fhxh","UBUNTU-CVE-2026-41150"],"status":"published","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.","severity":{"version":"4.0","score":5.3,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00384,"percentile":0.32957,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-835"],"published":"2026-05-11T19:36:55Z","modified":"2026-11-11T10:30:38Z","fixes":[{"ecosystem":"npm","package":"mermaid","fixed_in":["11.15.0","10.9.6"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"mermaid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0.0-alpha.1"},{"last_affected":"11.14.0"},{"fixed":"11.15.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"mermaid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"10.9.5"},{"fixed":"10.9.6"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"node-mermaid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.11.0+ds+~cs29.13.22-1","8.13.2+ds+~cs30.13.21-1","8.13.2+ds+~cs30.13.21-1.1","8.13.3+ds+~cs26.13.21-1","8.13.3+ds+~cs26.13.21-2","8.13.8+~cs10.4.16-1","8.14.0+ds1+~cs11.4.14-1","8.14.0+~cs11.4.14-1","8.7.0+ds+~cs27.17.17-1","8.7.0+ds+~cs27.17.17-2","8.7.0+ds+~cs27.17.17-2~bpo10+1","8.7.0+ds+~cs27.17.17-3","8.9.1+ds+~cs26.20.25-1","8.9.3+ds+~cs29.13.19-1","9.2.2+~2.0.0-1","9.2.2+~2.0.0-2"]},{"source":"osv","ecosystem":"npm","package":"mermaid","ranges":[{"type":"SEMVER","events":[{"introduced":"11.0.0-alpha.1"},{"fixed":"11.15.0"}]}]},{"source":"osv","ecosystem":"npm","package":"mermaid","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"10.9.6"}]}]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"node-mermaid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.7.0+ds+~cs27.17.17-3","8.13.3+ds+~cs26.13.21-1","8.13.3+ds+~cs26.13.21-2","8.13.8+~cs10.4.16-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"node-mermaid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.2.2+~2.0.0-1","9.2.2+~2.0.0-2"]}],"products":[{"vendor":"mermaid-js","product":"mermaid"},{"vendor":"mermaid_project","product":"mermaid"}],"references":[{"url":"https://github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxh","tags":["x_refsource_CONFIRM","exploit","Third Party Advisory","advisory","web","report"]},{"url":"https://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6","tags":["x_refsource_MISC","Patch","fix","web","report"]},{"url":"https://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30e","tags":["x_refsource_MISC","Patch","fix","web","report"]},{"url":"https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0","tags":["x_refsource_MISC","Release Notes","web","report"]},{"url":"https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6","tags":["x_refsource_MISC","Release Notes","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41150","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6m6c-36f7-fhxh"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41150.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-41150","tags":["advisory"]},{"url":"https://github.com/mermaid-js/mermaid","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-41150","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-41150","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-41150","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.","status":"published","published":"2026-05-29T13:54:52.157Z","modified":"2026-05-29T16:17:31.324Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium","assessor":"cna"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T13:41:08.498858Z"}],"euvd":[{"id":"EUVD-2026-33325","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.","status":"published","published":"2026-05-29T13:54:52Z","modified":"2026-05-29T16:17:31Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"}],"updated_at":"2026-11-02T18:21:00.772434Z"}],"ghsa":[{"id":"GHSA-6m6c-36f7-fhxh","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.","status":"published","published":"2026-05-11T19:36:55Z","modified":"2026-06-09T10:28:49Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T14:40:22.540562Z"}],"nvd":[{"id":"CVE-2026-41150","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.","status":"published","published":"2026-05-29T15:16:22.673Z","modified":"2026-07-21T12:10:00.09Z","cvss":[{"version":"4.0","score":5.3,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T14:12:21.244426Z"}],"osv":[{"id":"CVE-2026-41150","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.","status":"published","published":"2026-05-29T13:54:52.157Z","modified":"2026-11-11T10:30:38.310837621Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"}],"cwes":["CWE-835"],"updated_at":"2026-11-11T11:06:45.241059Z"},{"id":"DEBIAN-CVE-2026-41150","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.","status":"published","published":"2026-05-29T15:16:22.673Z","modified":"2026-10-01T03:03:11.641969302Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:45:54.892385Z"},{"id":"GHSA-6m6c-36f7-fhxh","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.","status":"published","published":"2026-05-11T19:36:55Z","modified":"2026-09-10T03:50:45.806197285Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"4.0","score":5.3,"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","level":"medium"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T15:46:39.965326Z"},{"id":"UBUNTU-CVE-2026-41150","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.","status":"published","published":"2026-05-29T15:16:00Z","modified":"2026-10-17T12:58:14.940796693Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T16:56:16.686388Z"}]}}