CVE-2025-55668
August 13, 2025
Session Fixation vulnerability in Apache Tomcat via rewrite valve.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from 9.0.0.M1 through 9.0.105.
Older, EOL versions may also be affected.
Affected Packages
https://github.com/apache/tomcat.git (GITHUB):
Affected version(s) >=11.0.0-M1 <11.0.8Fix Suggestion:
Update to version 11.0.8https://github.com/apache/tomcat.git (GITHUB):
Affected version(s) >=9.0.0-M1 <9.0.106Fix Suggestion:
Update to version 9.0.106https://github.com/apache/tomcat.git (GITHUB):
Affected version(s) >=10.1.0-M1 <10.1.42Fix Suggestion:
Update to version 10.1.42org.apache.tomcat:tomcat-catalina (JAVA):
Affected version(s) >=9.0.0.M1 <9.0.106Fix Suggestion:
Update to version 9.0.106org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=10.1.0-M1 <10.1.42Fix Suggestion:
Update to version 10.1.42org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=11.0.0-M1 <11.0.8Fix Suggestion:
Update to version 11.0.8Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (12)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Session Fixation
EPSS
Base Score:
0.0
