CVE-2016-4800

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-04-13 · updated 2026-06-17
Weakness: CWE-284

Description

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

The Eclipse Foundation Eclipse Jetty: 9.3.0, 9.3.0-m0, 9.3.0-m1, 9.3.0-maintenance2, 9.3.0-rc0, 9.3.0-rc1 (+13)

References

http://dev.eclipse.org/mhonarc/lists/jetty-announce/msg00092.html
http://www.ocert.org/advisories/ocert-2016-001.html
http://www.securityfocus.com/bid/90945
http://www.zerodayinitiative.com/advisories/ZDI-16-362
https://security.netapp.com/advisory/ntap-20190307-0006/
https://www.oracle.com/security-alerts/cpuoct2020.html
http://dev.eclipse.org/mhonarc/lists/jetty-announce/msg00092.html
http://www.ocert.org/advisories/ocert-2016-001.html
http://www.securityfocus.com/bid/90945
http://www.zerodayinitiative.com/advisories/ZDI-16-362
https://security.netapp.com/advisory/ntap-20190307-0006/
https://www.oracle.com/security-alerts/cpuoct2020.html

Get alerted when CVE-2016-4800 or the next vulnerability affects your stack