Medium severity6.1GHSA Advisory· Published May 26, 2026· Updated May 28, 2026
CVE-2026-44708
CVE-2026-44708
Description
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the mistune math plugin renders inline math ($...$) and block math ($$...$$) by concatenating the raw user-supplied content directly into the HTML output without any HTML escaping. This occurs even when the parser is explicitly created with escape=True, which is supposed to guarantee that all user-controlled text is sanitised before reaching the DOM. This vulnerability is fixed in 3.2.1.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
mistunePyPI | <= 3.2.0 | — |
Affected products
4- osv-coords3 versionspkg:apk/chainguard/datahub-ingestion-fipspkg:apk/chainguard/kubeflow-pipelines-visualization-serverpkg:apk/wolfi/kubeflow-pipelines-visualization-server
< 1.5.0.1-r2+ 2 more
- (no CPE)range: < 1.5.0.1-r2
- (no CPE)range: < 2.16.1-r2
- (no CPE)range: < 2.16.1-r2
Patches
Vulnerability mechanics
References
4- github.com/lepture/mistune/security/advisories/GHSA-8g87-j6q8-g93xnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-8g87-j6q8-g93xghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-44708ghsaADVISORY
- github.com/lepture/mistune/releases/tag/v3.2.1nvdProductRelease NotesWEB
News mentions
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