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5.3 Medium

CVE-2026-115350 Mistune before 3.3.0 contains a cross-site scripting vulnerability in the Include directive that emits included .html,…

Description

Mistune before 3.3.0 contains a cross-site scripting vulnerability in the Include directive that emits included .html, .xhtml, or .htm file content as raw block_html tokens. Attackers who can plant an HTML file readable by the renderer can reference it via an include directive, combined with path traversal, to execute stored scripts when escape=False is set.

Affected products and versions

Product Affected versions Fixed in
mistune 3.3 earliest → < 3.3.0 3.3.0

References

Timeline

  1. Published
  2. Last modified

Other CVEs of mistune

The 28 CVEs of mistune →
CVE-2026-121437 Mistune from 3.3.0 before 3.3.4 contains a denial of service vulnerability that allows remote attackers to exhaust CPU… 8.7 High CVE-2026-121438 Mistune before 3.3.3 contains a denial of service vulnerability in InlineParser.parse_link that allows attackers to… 6.9 Medium CVE-2026-115355 Mistune before 3.3.0 contains a path traversal vulnerability in the Include directive that allows attackers to read… 8.7 High CVE-2026-115354 Mistune before 3.3.0 contains a path traversal vulnerability in the opt-in Include directive that allows attackers to… 7.1 High
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