What is CVE-2026-59324?

CVE-2026-59324 is a high-severity vulnerability in Spring Integration, classified under CWE-362 CONCURRENT EXECUTION USING SHARED RESOURCE WITH IMPROPER SYNCHRONIZATION ('RACE CONDITION'). CVSS score: 8.2/10. Published 2026-08-27.

How severe is CVE-2026-59324?

High severity. CVSS v3 base score is 8.2 out of 10.

Vulnerability in Spring Integration

CVE-2026-59324

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

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Spring Integration — versions 7.1.0

References

security@vmware.com

Frequently asked questions

What is CVE-2026-59324?: CVE-2026-59324 is a high-severity vulnerability in Spring Integration, classified under CWE-362 CONCURRENT EXECUTION USING SHARED RESOURCE WITH IMPROPER SYNCHRONIZATION ('RACE CONDITION'). CVSS score: 8.2/10. Published 2026-08-27.
How severe is CVE-2026-59324?: High severity. CVSS v3 base score is 8.2 out of 10.