CVE-2020-26307

HIGH EPSS 30.8%

Published Oct 26, 20241y ago · Modified Jun 17, 20261w ago

8.7 CVSS 4.0

High

Published Oct 26, 2024 1y ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

8.7

Exploitability

—

Impact

—

Vector string

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Green

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

30.8% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-1333

References 2

github.com https://github.com/kates/html2markdown/issues/13
securitylab.github.com https://securitylab.github.com/advisories/GHSL-2020-301-redos-HTML2Markdown/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.