CVE-2026-59324: VMware Spring Integration

High severity, CVSS 8.2. EPSS: 0.3% chance of exploitation in the next 30 days.

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 products

• VMware Spring Integration: before 5.5.22 (fixed in 5.5.22); from 6.4.0, before 6.4.13 (fixed in 6.4.13); from 6.5.0, before 6.5.11 (fixed in 6.5.11); from 7.0.0, before 7.0.5.1 (fixed in 7.0.5.1); from 7.1.0, before 7.1.0.1 (fixed in 7.1.0.1)

Published 2026-08-27. Last modified 2026-09-01.