CVE-2023-4241: Cloudflare Lol-Html

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

lol-html can cause panics on certain HTML inputs. Anyone processing arbitrary 3rd party HTML with the library is affected.

Affected products

• Cloudflare Lol-Html: before 1.1.1 (fixed in 1.1.1)

Published 2023-08-16. Last modified 2026-06-17.