CVE-2017-10974: Yaws

High severity, CVSS 7.5. EPSS: 81.2% chance of exploitation in the next 30 days.

Yaws 1.91 allows Unauthenticated Remote File Disclosure via HTTP Directory Traversal with /%5C../ to port 8080. NOTE: this CVE is only about use of an initial /%5C sequence to defeat traversal protection mechanisms; the initial /%5C sequence was apparently not discussed in earlier research on this product.

Affected products

• Yaws Yaws: version 1.91 only

Published 2017-07-07. Last modified 2026-06-17.