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MEDIUM

KaTeX's maxExpand bypassed by \edef

Published Mar 25, 2024

Description

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.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (2)

References (6)

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED
Assigner GitHub_M
Published Mar 25, 2024
Updated Feb 5, 2026
Reserved Mar 7, 2024

CISA Vulnrichment

Updated Apr 1, 2024

NVD

Status Modified
Modified Jun 17, 2026

Red Hat

No data

ENISA EUVD

Assigner GitHub_M
Published Mar 25, 2024
Updated Feb 5, 2026