Vulnerability in Mermaid-js Mermaid
CVE-2026-41150
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 exc…
EPSS: 0.001 (17.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Mermaid-js Mermaid — versions >= 11.0.0-alpha.1, < 11.15.0, < 10.9.6
- Mermaid_project Mermaid
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-41150?
- CVE-2026-41150 is a medium-severity vulnerability in Mermaid-js Mermaid, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.3/10. Published 2026-05-29.
- How severe is CVE-2026-41150?
- Medium severity. CVSS v3 base score is 5.3 out of 10.