Threat database

CVE-2026-102941 is an out-of-bounds read vulnerability in the gomarkdown markdown Go library. The flaw occurs in the parser.IsSafeURL function when it slices a URL without verifying its length, which can cause a panic on short or malformed URLs. This panic can terminate the calling process, resulting in a denial of service condition. The vulnerability affects versions prior to 0.0.0-20260724235538-61af6e1e6971 and is fixed in that version.

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.