PT-2024-22358 · Katex+3 · Katex+3

Jupenur · Published 2024-03-25 · Updated 2026-02-05 · CVE-2024-28243

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions KaTeX versions prior to 0.16.10

Description KaTeX is a JavaScript library for TeX math rendering on the web. 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 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.

Recommendations Upgrade to KaTeX v0.16.10 to remove this vulnerability. Forbid inputs containing the substring "edef" before passing them to KaTeX. As a temporary workaround, consider restricting the use of the edef command in KaTeX until a patch is available.

Exploit

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

CWE-606

Related Identifiers

CVE-2024-28243

GHSA-64FM-8HW2-V72W

USN-7572-1

Affected Products

Debian

Katex

Linuxmint

Ubuntu

References · 25

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/28xxx/CVE-2024-28243.json · Exploit
• https://github.com/KaTeX/KaTeX/security/advisories/GHSA-64fm-8hw2-v72w · Vendor Advisory
• https://github.com/KaTeX/KaTeX/commit/e88b4c357f978b1bca8edfe3297f0aa309bcbe34 · Patch
• https://ubuntu.com/security/CVE-2024-28243 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-28243 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-28243 · Security Note
• https://ubuntu.com/security/CVE-2024-28245 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-64fm-8hw2-v72w · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-28243 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-28243 · Security Note
• https://osv.dev/vulnerability/CVE-2024-28243 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7572-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7572-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-23207 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-28243 · Vendor Advisory