VULNERABILITY INTELLIGENCE

CVE-2021-26813

CVSS score7.5 HIGH
EPSS probability2.32%
CISA KEVNot currently listed
Published2021-03-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.

Weakness classification

  • nvd@nist.gov: CWE-1333

Primary references