CVE-2026-41150
MEDIUM5.3EPSS 0.04%Mermaid Gantt Charts are vulnerable to an Infinite Loop DoS
Published: 5/11/2026Modified: 6/2/2026
Also known as: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.
Affected packages (2)
- Debian/node-mermaidfrom 0
- npm/mermaid>= 11.0.0-alpha.1, < 11.15.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
References (7)
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-41150
- PATCHhttps://github.com/mermaid-js/mermaid
- WEBhttps://github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6
- WEBhttps://github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30e
- WEBhttps://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0
- WEBhttps://github.com/mermaid-js/mermaid/releases/tag/v10.9.6
- WEBhttps://github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxh