Dashboard / CVE-2026-59929

CVE-2026-59929

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 62/100
Published: 2026-07-08 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the safe_url filter in src/mistune/renderers/html.py blocks only javascript:, vbscript:, file:, and data: schemes, allowing legacy or chained schemes such as feed:, view-source:, jar:, livescript:, mocha:, ms-its:, mk:, and res: to reach rendered href and src attributes and potentially execute script in affected user agents. This issue is fixed in version 3.3.0.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
mistune_project mistune < 3.3.0

References & Advisories (3)

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.34%
Raw Score 0.003410
Percentile 27.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00341
2026-10-28
0.00341

Intelligence Sources

nvd ref →

External Links