{"id":"CVE-2026-59324","state":"PUBLISHED","title":"fluxTransform shared RequestMessageHolder causes cross-message header leakage under async fluxFunction","description":"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.\nSpring Integration 7.1.0\nSpring Integration 7.0.0 - 7.0.5\nSpring Integration 6.5.0 - 6.5.10\nSpring Integration 6.4.0 - 6.4.12\nSpring Integration 5.5.21 and earlier","publishedAt":"2026-08-27T18:04:51.595Z","updatedAt":"2026-08-28T22:46:33.636Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","source":"vmware"},"assigner":"vmware","products":["Spring Spring Integration"],"affected":[{"vendor":"Spring","product":"Spring Integration","defaultStatus":"unaffected","versions":[{"version":"7.1.0","status":"affected","versionType":"custom"},{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.0.5","versionType":"custom"},{"version":"6.5.0","status":"affected","lessThanOrEqual":"6.5.10","versionType":"custom"},{"version":"6.4.0","status":"affected","lessThanOrEqual":"6.4.12","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"5.5.21","versionType":"custom"}]}],"references":["https://spring.io/security/cve-2026-59324"],"weaknesses":["CWE-362"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59324.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59324","state":"PUBLISHED","datePublished":"2026-08-27T18:04:51.595Z","dateUpdated":"2026-08-28T22:46:33.636Z","assignerShortName":"vmware","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateReserved":"2026-07-04T18:14:10.167Z"},"containers":{"cna":{"title":"fluxTransform shared RequestMessageHolder causes cross-message header leakage under async fluxFunction","descriptions":[{"lang":"en","value":"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.\nSpring Integration 7.1.0\nSpring Integration 7.0.0 - 7.0.5\nSpring Integration 6.5.0 - 6.5.10\nSpring Integration 6.4.0 - 6.4.12\nSpring Integration 5.5.21 and earlier"}],"affected":[{"vendor":"Spring","product":"Spring Integration","defaultStatus":"unaffected","versions":[{"version":"7.1.0","status":"affected","versionType":"custom"},{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.0.5","versionType":"custom"},{"version":"6.5.0","status":"affected","lessThanOrEqual":"6.5.10","versionType":"custom"},{"version":"6.4.0","status":"affected","lessThanOrEqual":"6.4.12","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"5.5.21","versionType":"custom"}]}],"references":[{"url":"https://spring.io/security/cve-2026-59324"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","type":"CWE"}]}],"providerMetadata":{"shortName":"vmware","orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateUpdated":"2026-08-27T18:04:51.595Z"},"impacts":[{"descriptions":[{"lang":"en","value":"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."}]}],"source":{"discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-28T22:45:05.322462Z","id":"CVE-2026-59324","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-362","type":"CWE","lang":"en","description":"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-28T22:46:33.636Z"}}]}}}