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CVE-2026-41150— Mermaid Gantt Charts are vulnerable to an Infinite Loop DoS

Quick assessment

Affected
mermaid-js mermaid
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mermaid是mermaid-js开源的一个应用软件。使用文本和代码创建图表和可视化。 Mermaid 10.9.6之前版本和11.15.0之前版本存在安全漏洞，该漏洞源于在渲染甘特图时，如果使用excludes属性排除所有日期，则会导致拒绝服务攻击。mermaid.parse不受影响，除非随后调用ganttDb.getTasks。

AI Predicted 5.3 Difficulty: Easy EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 2

VendorProduct Version RangeStatus
mermaid-js mermaid >= 11.0.0-alpha.1, < 11.15.0 affected
< 10.9.6 affected
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I. Basic Information for CVE-2026-41150

Vulnerability Information
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Vulnerability Title
Mermaid Gantt Charts are vulnerable to an Infinite Loop DoS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Mermaid 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mermaid是mermaid-js开源的一个应用软件。使用文本和代码创建图表和可视化。 Mermaid 10.9.6之前版本和11.15.0之前版本存在安全漏洞，该漏洞源于在渲染甘特图时，如果使用excludes属性排除所有日期，则会导致拒绝服务攻击。mermaid.parse不受影响，除非随后调用ganttDb.getTasks。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mermaid-js mermaid >= 11.0.0-alpha.1, < 11.15.0 -

II. Public POCs for CVE-2026-41150

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III. Intelligence Information for CVE-2026-41150

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Patches & Fixes for CVE-2026-41150 (2)

Vendor Advisories for CVE-2026-41150 (1)

Vendor Pages for CVE-2026-41150 (2)

IV. Related Vulnerabilities

Same product: mermaid
Same vendor: mermaid-js
Same weakness: CWE-835

V. Comments for CVE-2026-41150

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