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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/gomarkdown/markdown/commit/759bbc3e32073c3bc4e25969c132fc520eda2778 Patch
- https://github.com/gomarkdown/markdown/security/advisories/GHSA-77fj-vx54-gvh7 Exploit, Vendor Advisory
- https://github.com/gomarkdown/markdown/security/advisories/GHSA-77fj-vx54-gvh7 Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · gomarkdownNVD modified 2026-10-26 21:10
Affected (CPE criteria) 1
cpe:2.3:a:gomarkdown:markdown:*:*:*:*:*:go:*:*