CVE-2022-21670 – markdown-it

Package

Manager: npm
Name: markdown-it
Vulnerable Version: >=0 <=12.3.1

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: 0.01157 pctl0.77765

Details

Uncontrolled Resource Consumption in markdown-it ### Impact Special patterns with length > 50K chars can slow down parser significantly. ```js const md = require('markdown-it')(); md.render(`x ${' '.repeat(150000)} x \nx`); ``` ### Patches Upgrade to v12.3.2+ ### Workarounds No. ### References Fix + test sample: https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101

Metadata

Created: 2022-01-12T22:20:22Z
Modified: 2022-01-19T18:25:52Z
Source: MANUAL
CWE IDs: ["CWE-1333", "CWE-400"]
Alternative ID: GHSA-6vfc-qv3f-vr6c
Finding: F211
Auto approve: 1