Nixpkgs security tracker
6.5 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): NETWORK
- Attack complexity (AC): LOW
- Privileges required (PR): LOW
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): NONE
- Availability impact (A): HIGH
Activity log
- Created suggestion
KaTeX's maxExpand bypassed by \edef
KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\edef` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. This can be used as an availability attack, where e.g. a client rendering another user's KaTeX input will be unable to use the site due to memory overflow, tying up the main thread, or stack overflow. Upgrade to KaTeX v0.16.10 to remove this vulnerability.
References
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https://github.com/KaTeX/KaTeX/security/advisories/GHSA-64fm-8hw2-v72w x_transferredx_refsource_CONFIRM
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https://github.com/KaTeX/KaTeX/commit/e88b4c357f978b1bca8edfe3297f0aa309bcbe34 x_transferredx_refsource_MISC
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https://github.com/github/advisory-database/pull/6777 x_refsource_MISC
Affected products
- ==>= v0.10.0-beta, < 0.16.10
- ==>= 0.12.0, < 0.16.10
Matching in nixpkgs
pkgs.katex
Render TeX to HTML
pkgs.mdbook-katex
Preprocessor for mdbook, rendering LaTeX equations to HTML at build time
pkgs.pandoc-katex
Pandoc filter to render math equations using KaTeX
pkgs.python312Packages.sphinxcontrib-katex
Sphinx extension using KaTeX to render math in HTML
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nixos-unstable 0.9.10
pkgs.python313Packages.sphinxcontrib-katex
Sphinx extension using KaTeX to render math in HTML
pkgs.python314Packages.sphinxcontrib-katex
Sphinx extension using KaTeX to render math in HTML
Package maintainers
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@lovesegfault Bernardo Meurer <meurerbernardo@gmail.com>
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@matthiasbeyer Matthias Beyer <mail@beyermatthias.de>
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@minijackson Rémi Nicole <minijackson@riseup.net>
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@pacien euxane <r9uhdi.nixpkgs@euxane.eu>
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@jluttine Jaakko Luttinen <jaakko.luttinen@iki.fi>
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@pyrox0 Pyrox <pyrox@pyrox.dev>