CVE-2016-4800: Eclipse Jetty

Critical severity, CVSS 9.8. EPSS: 6.4% chance of exploitation in the next 30 days.

The path normalization mechanism in PathResource class in Eclipse Jetty 9.3.x before 9.3.9 on Windows allows remote attackers to bypass protected resource restrictions and other security constraints via a URL with certain escaped characters, related to backslashes.

Affected products

• Eclipse Jetty: version 9.3.0 only; version 9.3.1 only; version 9.3.2 only; version 9.3.3 only; version 9.3.4 only; version 9.3.5 only; …

Published 2017-04-13. Last modified 2026-06-17.