CVE-2026-41493: Yardoc Yard

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Yardoc Yard: before 0.9.42 (fixed in 0.9.42)

Published 2026-05-08. Last modified 2026-06-17.