Insufficient Verification of Data Authenticity Affecting python313-mistune package, versions <3.1.3-160000.5.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-SLES1600-PYTHON313MISTUNE-17999978
  • published17 Jul 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

CVE-2026-59930  (opens in a new tab)
CWE-345  (opens in a new tab)
CWE-1284  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 python313-mistune to version 3.1.3-160000.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python313-mistune package and not the python313-mistune package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the toc plugin and TableOfContents directive generate heading IDs as predictable toc_N values without slugifying the heading text, allowing attacker-controlled id="toc_N" content to collide with generated anchors and redirect same-page navigation, CSS selectors, or JavaScript handlers. This issue is fixed in version 3.3.0.

CVSS Base Scores

version 3.1