CVE-2020-26307: Kates HTML2MARKDOWN

High severity, CVSS 8.7. EPSS: 0.4% chance of exploitation in the next 30 days.

HTML2Markdown is a Javascript implementation for converting HTML to Markdown text. All available versions contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.

Affected products

• Kates HTML2MARKDOWN: up to and including 1.0.2

Published 2024-10-26. Last modified 2026-06-17.