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CVE-2026-59324

fluxTransform shared RequestMessageHolder causes cross-message header leakage under async fluxFunction PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Spring / Spring Integrationaffected 7.1.0; affected 7.0.0 through 7.0.5; affected 6.5.0 through 6.5.10; affected 6.4.0 through 6.4.12; affected 0 through 5.5.21

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.