CVE-2022-24836: Apple macOS

High severity, CVSS 7.5. EPSS: 3.5% chance of exploitation in the next 30 days.

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< v1.13.4` contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri `>= 1.13.4`. There are no known workarounds for this issue.

Affected products

• Apple macOS: from 13.0, before 13.1 (fixed in 13.1)
• Debian Debian Linux: version 9.0 only; version 10.0 only
• Fedoraproject Fedora: version 34 only; version 35 only; version 36 only
• Nokogiri Nokogiri: before 1.13.4 (fixed in 1.13.4)

Published 2022-04-11. Last modified 2026-06-17.