CVE-2026-41839
Published:June 09, 2026
Updated:June 09, 2026
A WebFlux application with a compromised subdomain (for example, compromised via cross-site scripting (XSS)) is vulnerable to an escalation attack exchanging a known session ID for that of an authenticated user.
Affected versions:
Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
Affected Packages
https://github.com/spring-projects/spring-framework.git (GITHUB):
Affected version(s) >=v6.2.0 <v6.2.19Fix Suggestion:
Update to version v6.2.19https://github.com/spring-projects/spring-framework.git (GITHUB):
Affected version(s) >=v7.0.0 <v7.0.8Fix Suggestion:
Update to version v7.0.8org.springframework:spring-web (JAVA):
Affected version(s) >=6.2.0 <6.2.19Fix Suggestion:
Update to version 6.2.19org.springframework:spring-websocket (JAVA):
Affected version(s) >=6.2.0 <6.2.19Fix Suggestion:
Update to version 6.2.19org.springframework:spring-web (JAVA):
Affected version(s) >=7.0.0 <7.0.8Fix Suggestion:
Update to version 7.0.8org.springframework:spring-websocket (JAVA):
Affected version(s) >=7.0.0 <7.0.8Fix Suggestion:
Update to version 7.0.8Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Session Fixation
EPSS
Base Score:
0.03