CVE-2020-26307

HIGH

HTML2Markdown - ReDoS

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v4 8.7
EPSS 0.0019
EPSS Percentile 40.9%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/U:Green

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-1333
Status published
Products (1)
kates/html2markdown < 1.0.2
Published Oct 26, 2024
Tracked Since Feb 18, 2026