SUSE CVE-2026-50159

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Prior to 10.9.8 and 11.16.1, Mermaid is vulnerable to CSS injection via sibling combinator selectors generated from diagram-supplied class or id names. An attacker who can supply diagram text c...

SUSE CVE-2026-71437

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 11.5.0 until 11.16.1, Mermaid Architecture Diagrams are vulnerable to prototype pollution when a diagram defines a group with an id of proto. Because the group id is used directly ...

NPM: Mermaid Architecture diagrams are vulnerable to prototype pollution

NPM: Mermaid Architecture diagrams are vulnerable to prototype pollution vulnerability discovered by ? in WordPress Npm mermaid versions = 11.5.0, 11.16.1...

GHSA-3RRR-JR9J-H3Q3 Mermaid Architecture diagrams are vulnerable to prototype pollution

Rendering an untrusted architecture-beta diagram lets the diagram author write an arbitrary property with the value horizontal or vertical onto Object.prototype. A group id of proto is accepted as a valid parent. Impact Any code in the same realm that reads a property of that name from an arbitra...

CVE-2026-71437 Mermaid Architecture diagrams are vulnerable to prototype pollution

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 11.5.0 until 11.16.1, Mermaid Architecture Diagrams are vulnerable to prototype pollution when a diagram defines a group with an id of proto. Because the group id is used directly ...

CVE-2026-71437

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 11.5.0 until 11.16.1, Mermaid Architecture Diagrams are vulnerable to prototype pollution when a diagram defines a group with an id of proto. Because the group id is used directly ...

EUVD-2026-42909

In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible...

CVE-2026-40322

SiYuan is an open-source personal knowledge management system. In versions 3.6.3 and below, Mermaid diagrams are rendered with securityLevel set to "loose", and the resulting SVG is injected into the DOM via innerHTML. This allows attacker-controlled javascript: URLs in Mermaid code blocks to...

Linux Distros Unpatched Vulnerability : CVE-2026-41148

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and prior, in addition to 11.0.0-alpha.1...

DEBIAN-CVE-2026-41148

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and prior, in addition to 11.0.0-alpha.1 through 11.12.0 are vulnerable to CSS injection through improper sanitization. The state diagram and any other diagram type that routes...

CVE-2026-41149

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and earlier, as well as 11.0.0-alpha.1 through 11.14.0, are vulnerable to HTML injection under the default configuration. Specifically, the classDef directive in Mermaid state...

CVE-2026-41148

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and prior, in addition to 11.0.0-alpha.1 through 11.12.0 are vulnerable to CSS injection through improper sanitization. The state diagram and any other diagram type that routes...

UBUNTU-CVE-2026-41148

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and prior, in addition to 11.0.0-alpha.1 through 11.12.0 are vulnerable to CSS injection through improper sanitization. The state diagram and any other diagram type that routes...

CVE-2026-41149 Mermaid: Improper sanitization of `classDef` in state diagrams leads to HTML injection

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and earlier, as well as 11.0.0-alpha.1 through 11.14.0, are vulnerable to HTML injection under the default configuration. Specifically, the classDef directive in Mermaid state...

CVE-2026-41149

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and earlier, as well as 11.0.0-alpha.1 through 11.14.0, are vulnerable to HTML injection under the default configuration. Specifically, the classDef directive in Mermaid state...

CVE-2026-41148

CVE-2026-41148 affects Mermaid diagrams up to v10.9.5 and v11.0.0-alpha.1 to v11.12.0, where improper sanitization of classDef values in state diagrams allows CSS injection via addStyleClass() into create CssStyles(), ending with style.innerHTML and enabling page defacement, url()-based tracking,...

CVE-2026-41148

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and prior, in addition to 11.0.0-alpha.1 through 11.12.0 are vulnerable to CSS injection through improper sanitization. The state diagram and any other diagram type that routes...

CVE-2026-41148 Mermaid: Improper sanitization of `classDefs` in diagrams leads to CSS injection

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and prior, in addition to 11.0.0-alpha.1 through 11.12.0 are vulnerable to CSS injection through improper sanitization. The state diagram and any other diagram type that routes...

NPM: Mermaid: Improper sanitization of `classDefs` in diagrams leads to CSS injection

NPM: Mermaid: Improper sanitization of classDefs in diagrams leads to CSS injection vulnerability discovered by ? in WordPress Npm mermaid versions = 10.9.5...

PT-2026-39885

Name of the Vulnerable Software and Affected Versions Mermaid versions prior to 10.9.6 Mermaid versions 11.0.0-alpha.1 through 11.14.0 Description Improper sanitization in the state diagram and other diagram types that route user-controlled style strings through the createCssStyles parser allows...