CVE-2021-23424: Ansi-Html Project Ansi-Html

High severity, CVSS 7.5. EPSS: 2% chance of exploitation in the next 30 days.

This affects all versions of package ansi-html. If an attacker provides a malicious string, it will get stuck processing the input for an extremely long time.

Affected products

• Ansi-Html Project Ansi-Html: before 0.0.8 (fixed in 0.0.8)

Published 2021-08-18. Last modified 2026-06-17.