Nixpkgs security tracker
5.3 MEDIUM
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Attack Requirement (AT): None (N)
- Privileges Required (PR): None (N)
- User Interaction (UI): Passive (P)
- Vulnerable System Impact Confidentiality (VC): None (N)
- Vulnerable System Impact Integrity (VI): Low (L)
- Vulnerable System Impact Availability (VA): None (N)
- Subsequent System Impact Confidentiality (SC): Low (L)
- Subsequent System Impact Integrity (SI): Low (L)
- Subsequent System Impact Availability (SA): Low (L)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Attack Requirement (MAT): None (N)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): Passive (P)
- Modified Vulnerable System Impact Confidentiality (MVC): None (N)
- Modified Vulnerable System Impact Integrity (MVI): Low (L)
- Modified Vulnerable System Impact Availability (MVA): None (N)
- Modified Subsequent System Impact Confidentiality (MSC): Low (L)
- Modified Subsequent System Impact Integrity (MSI): Low (L)
- Modified Subsequent System Impact Availability (MSA): Low (L)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
Activity log
- Created suggestion
Mermaid: Improper sanitization of configuration leads to CSS injection
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, Mermaid's default configuration allows injecting CSS that applies outside of the Mermaid diagram via the fontFamily, themeCSS, and altFontFamily configuration options. The injected CSS exploits stylis's & (scope reference) handling. :not(&) escapes the #mermaid-xxx automatic scoping, applying styles to all page elements. Global at-rules (@font-face, @keyframes, @counter-style) are also injectable as stylis hoists them to top level. This allows page defacement and DOM attribute exfiltration via CSS :has() selectors. This vulnerability is fixed in 10.9.6 and 11.15.0.
References
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https://github.com/mermaid-js/mermaid/security/advisories/GHSA-87f9-hvmw-gh4p x_refsource_CONFIRM
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https://github.com/mermaid-js/mermaid/releases/tag/mermaid@11.15.0 x_refsource_MISC
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https://github.com/mermaid-js/mermaid/releases/tag/v10.9.6 x_refsource_MISC
Affected products
- ==< 10.9.6
- ==>= 11.0.0-alpha.1, < 11.15.0
Matching in nixpkgs
pkgs.mermaid-cli
Generation of diagrams from text in a similar manner as markdown
pkgs.mdbook-mermaid
Preprocessor for mdbook to add mermaid.js support
pkgs.mermaid-filter
Pandoc filter for creating diagrams in mermaid syntax blocks in markdown docs
pkgs.python312Packages.sphinxcontrib-mermaid
Mermaid diagrams in yours sphinx powered docs
pkgs.python313Packages.sphinxcontrib-mermaid
Mermaid diagrams in yours sphinx powered docs
pkgs.python314Packages.sphinxcontrib-mermaid
Mermaid diagrams in yours sphinx powered docs
pkgs.python312Packages.mkdocs-mermaid2-plugin
MkDocs plugin for including mermaid graphs in markdown sources
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nixos-25.11 mermaid2-plugin-1.2.3
- nixos-25.11-small mermaid2-plugin-1.2.3
- nixpkgs-25.11-darwin mermaid2-plugin-1.2.3
pkgs.python313Packages.mkdocs-mermaid2-plugin
MkDocs plugin for including mermaid graphs in markdown sources
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nixos-unstable mermaid2-plugin-1.2.3
- nixpkgs-unstable mermaid2-plugin-1.2.3
- nixos-unstable-small mermaid2-plugin-1.2.3
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nixos-25.11 mermaid2-plugin-1.2.3
- nixos-25.11-small mermaid2-plugin-1.2.3
- nixpkgs-25.11-darwin mermaid2-plugin-1.2.3
pkgs.python314Packages.mkdocs-mermaid2-plugin
MkDocs plugin for including mermaid graphs in markdown sources
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nixos-unstable mermaid2-plugin-1.2.3
- nixpkgs-unstable mermaid2-plugin-1.2.3
- nixos-unstable-small mermaid2-plugin-1.2.3
pkgs.tree-sitter-grammars.tree-sitter-mermaid
Tree-sitter grammar for mermaid
-
nixos-unstable 0-unstable-2024-04-22
- nixpkgs-unstable 0-unstable-2024-04-22
- nixos-unstable-small 0-unstable-2024-04-22
-
nixos-unstable 0.0.0+rev=90ae195
- nixpkgs-unstable 0.0.0+rev=90ae195
- nixos-unstable-small 0.0.0+rev=90ae195
pkgs.vscode-extensions.bierner.markdown-mermaid
Adds Mermaid diagram and flowchart support to VS Code's builtin markdown preview
pkgs.python313Packages.tree-sitter-grammars.tree-sitter-mermaid
Python bindings for tree-sitter-mermaid
-
nixos-unstable 0+unstable20240422
- nixpkgs-unstable 0+unstable20240422
- nixos-unstable-small 0+unstable20240422
pkgs.python314Packages.tree-sitter-grammars.tree-sitter-mermaid
Python bindings for tree-sitter-mermaid
-
nixos-unstable 0+unstable20240422
- nixpkgs-unstable 0+unstable20240422
- nixos-unstable-small 0+unstable20240422
Package maintainers
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@xrelkd xrelkd
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@matthiasbeyer Matthias Beyer <mail@beyermatthias.de>
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@ysndr Yannik Sander <me@ysndr.de>
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@ners ners <ners@gmx.ch>
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@mightyiam Shahar "Dawn" Or <mightyiampresence@gmail.com>
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@A-jay98 Ali Jamadi <ali@jamadi.me>
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@stepbrobd Yifei Sun <ysun@hey.com>
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@adfaure Adrien Faure <adfaure@pm.me>
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@aciceri Andrea Ciceri <andrea.ciceri@autistici.org>