KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\def` or `\newcommand` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. KaTeX supports an option named maxExpand which aims to prevent infinitely recursive macros from consuming all available memory and/or triggering a stack overflow error. Unfortunately, support for "Unicode (sub|super)script characters" allows an attacker to bypass this limit. Each sub/superscript group instantiated a separate Parser with its own limit on macro executions, without inheriting the current count of macro executions from its parent. This has been corrected in KaTeX v0.16.10.
CVE-2024-28244 - Medium Severity Vulnerability
Library home page: https://registry.npmjs.org/katex/-/katex-0.16.8.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy: - rehype-katex-6.0.3.tgz (Root Library) - :x: **katex-0.16.8.tgz** (Vulnerable Library)
Found in HEAD commit: 50f91e8f19edfee259e1f0672ab3b00104b33d47
Found in base branch: master
KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\def` or `\newcommand` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. KaTeX supports an option named maxExpand which aims to prevent infinitely recursive macros from consuming all available memory and/or triggering a stack overflow error. Unfortunately, support for "Unicode (sub|super)script characters" allows an attacker to bypass this limit. Each sub/superscript group instantiated a separate Parser with its own limit on macro executions, without inheriting the current count of macro executions from its parent. This has been corrected in KaTeX v0.16.10.
Publish Date: 2024-03-25
URL: CVE-2024-28244
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/KaTeX/KaTeX/security/advisories/GHSA-cvr6-37gx-v8wc
Release Date: 2024-03-25
Fix Resolution: katex - 0.16.10
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