Vulnerability in Lepture Mistune

CVE-2026-33079

In versions 3.0.0a1 through 3.2.0 of Mistune, there is a ReDoS (Regular Expression Denial of Service) vulnerability in `LINK_TITLE_RE` that allows an attacker who can supply Markdown for parsing to cause denial of service. The regular expr…

Vulnerability class: ReDoS (Regular Expression Denial of Service)

EPSS: 0.000 (5.8th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

References