CVE-2026-59324
Published:August 27, 2026
Updated:September 24, 2026
When an IntegrationFlow uses .fluxTransform() with an asynchronous/reordering fluxFunction that emits raw payloads, concurrent requests on the same FluxMessageChannel subscription have their reply headers (replyChannel, errorChannel, correlationId, any propagated security/tenant headers) copied from whichever message was most recently consumed upstream.
Spring Integration 7.1.0
Spring Integration 7.0.0 - 7.0.5
Spring Integration 6.5.0 - 6.5.10
Spring Integration 6.4.0 - 6.4.12
Spring Integration 5.5.21 and earlier
Affected Packages
https://github.com/spring-projects/spring-integration.git (GITHUB):
Affected version(s) >=v7.0.0 <v7.0.6Fix Suggestion:
Update to version v7.0.6https://github.com/spring-projects/spring-integration.git (GITHUB):
Affected version(s) =v7.1.0 <v7.1.1Fix Suggestion:
Update to version v7.1.1org.springframework.integration:spring-integration-core (JAVA):
Affected version(s) =7.1.0 <7.1.1Fix Suggestion:
Update to version 7.1.1org.springframework.integration:spring-integration-core (JAVA):
Affected version(s) >=7.0.0 <7.0.6Fix Suggestion:
Update to version 7.0.6Related Resources (3)
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)
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
EPSS
Base Score:
0.24