CVE-2026-41493

Name	CVE-2026-41493
Description	YARD is a Ruby Documentation tool. Prior to version 0.9.42, a path traversal vulnerability was discovered in YARD when using yard server to serve documentation. This bug would allow unsanitized HTTP requests to access arbitrary files on the machine of a yard server host under certain conditions. This issue has been patched in version 0.9.42.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1136076

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
yard (PTS)	bullseye (security), bullseye	0.9.24-1+deb11u1	vulnerable
	bookworm, bookworm (security)	0.9.28-2+deb12u2	vulnerable
	trixie	0.9.37-1	vulnerable
	forky, sid	0.9.39-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
yard	source	(unstable)	(unfixed)			1136076

https://github.com/lsegal/yard/security/advisories/GHSA-3jfp-46x4-xgfj