CVE-2026-40890

Name
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

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

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:gomarkdown:markdown:*:*:*:*:*:go:*:* markdown >= None < 2026-04-10

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
markdown edge-community 1.0.1-r3 Kevin Daudt <kdaudt@alpinelinux.org> possibly vulnerable
markdown edge-community 1.0.1-r2 Kevin Daudt <kdaudt@alpinelinux.org> possibly vulnerable
markdown 3.23-community 1.0.1-r3 Kevin Daudt <kdaudt@alpinelinux.org> possibly vulnerable