CVE-2021-26813

HIGH

Markdown2 < 2.4.0 - Denial of Service

Title source: rule
STIX 2.1

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.

References (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.0050
EPSS Percentile 66.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-1333
Status published
Products (5)
fedoraproject/fedora 32
fedoraproject/fedora 33
fedoraproject/fedora 34
markdown2_project/markdown2 1.0.1.18 - 2.4.0
pypi/markdown2 1.0.1.18 - 2.4.0PyPI
Published Mar 03, 2021
Tracked Since Feb 18, 2026