CVE-2026-40890

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.

CVSS Vector

References

• https://github.com/gomarkdown/markdown/commit/759bbc3e32073c3bc4e25969c132fc520eda2778
• https://github.com/gomarkdown/markdown/security/advisories/GHSA-77fj-vx54-gvh7
• https://github.com/gomarkdown/markdown/security/advisories/GHSA-77fj-vx54-gvh7