CVE-2026-59928

Microsoft · Published July 11, 2026

7.5

CVSS v3.1

HIGH

Patch availableGet patch

Description

Mistune block_parser: quadratic-time parsing on long lists of repeated reference-link definitions. Mistune block_parser: quadratic-time parsing on long lists of repeated reference-link definitions

Affected Products

azl3 python-mistune 3.3.0-1 on Azure Linux 3.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H