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CVE-2026-49342

YARD static cache reads raw traversal paths before router sanitization

YARD is a documentation generation tool for the Ruby programming language. Prior to version 0.9.44, YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root, a traversal path such as `/../yard-cache-secret.html` is joined against that root and can return a readable sibling `.html` file outside the intended static tree. Version 0.9.44 patches the issue.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Lsegal
Products
Yard
CVE-2026-41493

yard: Possible arbitrary path traversal and file access via yard server

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.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Lsegal Yardoc
Products
Yard Yard