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CVE-2026-40890

HIGH CVSS: 7.5 Published: 2026-04-21 Modified: 2026-06-17

Description

The package `github.com/gomarkdown/markdown` is a Go library for parsing Markdown text and rendering as HTML. Processing a malformed input containing a < character that is not followed by a > character anywhere in the remaining text with a SmartypantsRenderer will lead to Out of Bounds read or a panic. This vulnerability is fixed with commit 759bbc3e32073c3bc4e25969c132fc520eda2778.

Affected Platforms

Gomarkdown Markdown

Weakness Type

CWE-125

References