PT-2026-37120 · Yard+2 · Yard+2

Segal · Published 2026-04-17 · Updated 2026-06-05 · CVE-2026-41493

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions YARD versions prior to 0.9.42

Description A path traversal issue exists when using yard server to serve documentation. This flaw allows unsanitized HTTP requests to access arbitrary files on the host machine under certain conditions. Path traversal is a security gap where an attacker can access files and directories stored outside the intended folder by manipulating file paths.

Recommendations Upgrade to version 0.9.42. Perform path sanitization of HTTP requests at the webserver level. Use WEBrick via yard server -s webrick to perform default sanitization.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-41493

GHSA-3JFP-46X4-XGFJ

OESA-2026-2205

OESA-2026-2206

OESA-2026-2207

OESA-2026-2208

OESA-2026-2285

USN-8394-1

Affected Products

Linuxmint

Ubuntu

Yard

References · 25

• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2026-41493.yml · Exploit
• https://github.com/lsegal/yard/security/advisories/GHSA-3jfp-46x4-xgfj · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-41493 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-41493 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-41493 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3jfp-46x4-xgfj · Vendor Advisory
• https://osv.dev/vulnerability/USN-8394-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8394-1 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2205 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-41493 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-41493 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2207 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2285 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2206 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2208 · Vendor Advisory