UpHeron
All vulnerabilities

Servers and applications

CVE-2016-4800

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.

Severity
Critical 9.8
Published
13 Apr 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
6.5% in the next 30 daysHigher than 93% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Improper access control (CWE-284)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
Eclipse JettyServers and applications · cpe:a:eclipse:jetty
  • Version 9.3.8
  • Version 9.3.8-rc0
  • Version 9.3.7
  • Version 9.3.7-rc1
All 19 release lines
  • Version 9.3.0-rc0
  • Version 9.3.0-rc1
  • Version 9.3.0
  • Version 9.3.0-m0
  • Version 9.3.0-m1
  • Version 9.3.0-maintenance2
  • Version 9.3.1
  • Version 9.3.2
  • Version 9.3.3
  • Version 9.3.4-rc0
  • Version 9.3.4-rc1
  • Version 9.3.4
  • Version 9.3.5
  • Version 9.3.6
  • Version 9.3.7-rc0
  • Version 9.3.7-rc1
  • Version 9.3.7
  • Version 9.3.8-rc0
  • Version 9.3.8

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-4800
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-4800