CVE-2026-41150
Published:May 11, 2026
Updated:September 01, 2026
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
mermaid (CDN_JS):
Affected version(s) >=0.1.0 <10.9.6Fix Suggestion:
Update to version 10.9.6mermaid (CDN_JS):
Affected version(s) >=11.0.0-alpha.1 <11.15.0Fix Suggestion:
Update to version 11.15.0https://github.com/mermaid-js/mermaid.git (GITHUB):
Affected version(s) >=v10.9.0 <v10.9.6Fix Suggestion:
Update to version v10.9.6https://github.com/mermaid-js/mermaid.git (GITHUB):
Affected version(s) >=mermaid@11.0.1 <mermaid@11.15.0Fix Suggestion:
Update to version mermaid@11.15.0mermaid (NPM):
Affected version(s) >=11.0.0-alpha.1 <11.15.0Fix Suggestion:
Update to version 11.15.0mermaid (NPM):
Affected version(s) >=0.2.11 <10.9.6Fix Suggestion:
Update to version 10.9.6Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
LOW
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Loop with Unreachable Exit Condition ('Infinite Loop')
EPSS
Base Score:
0.38