Security Advisory

CVE-2026-40890

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-04-21 19:51:53

Last updated 2026-04-21 20:36:07

Assigner GitHub_M

State PUBLISHED

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.

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