CVE-2026-18660
Published:October 15, 2026
Updated:October 18, 2026
In Eclipse Jetty, across various versions of "jetty-server", and "jetty-proxy", the host whitelist/blacklist is case-sensitive, and would allow hosts through that only differ by case.
Affected Packages
org.eclipse.jetty:jetty-server (JAVA):
Affected version(s) >=12.0.0 <12.0.39Fix Suggestion:
Update to version 12.0.39org.eclipse.jetty:jetty-proxy (JAVA):
Affected version(s) >=9.4.0.v20161208 <9.4.65Fix Suggestion:
Update to version 9.4.65org.eclipse.jetty:jetty-server (JAVA):
Affected version(s) >=12.1.0 <12.1.12Fix Suggestion:
Update to version 12.1.12org.eclipse.jetty:jetty-proxy (JAVA):
Affected version(s) >=11.0.0 <11.0.33Fix Suggestion:
Update to version 11.0.33org.eclipse.jetty:jetty-proxy (JAVA):
Affected version(s) >=10.0.0 <10.0.33Fix Suggestion:
Update to version 10.0.33Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.32