Vulnerability · Published Oct 26, 2024 · Assigned by GitHub_M
CVE-2020-26307GHSL-2020-301: Regular Expression Denial of Service (ReDoS) in HTML2Markdown
High 8.7
In plain English
A high-severity regular-expression denial of service in html2markdown from kates. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.4%top 64.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| kates | html2markdown | 0 – through 1.0.2 |
Weakness: CWE-1333 · Vector: 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