PT-2026-56519 · Pypi · Mistune
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Mistune versions prior to 3.3.0
Description
A Python Markdown parser with renderers and plugins contains an issue where a Markdown document with numerous repeated or distinct reference-link definitions triggers quadratic work within
src/mistune/block parser.py and the ref links environment dictionary handling. This can lead to a denial of service through CPU exhaustion.Recommendations
Update to version 3.3.0.
Exploit
Fix
DoS
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Related Identifiers
Affected Products
Mistune