{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47856","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","state":"PUBLISHED","assignerShortName":"vmware","dateReserved":"2026-05-20T10:00:55.156Z","datePublished":"2026-08-26T23:28:43.829Z","dateUpdated":"2026-08-27T15:12:42.355Z"},"containers":{"cna":{"providerMetadata":{"orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","shortName":"vmware","dateUpdated":"2026-08-26T23:28:43.829Z"},"title":"JsonToObjectTransformer resolves the json__TypeId__ message header to an arbitrary class without an allow-list","problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-502 Deserialization of Untrusted Data","type":"CWE"}]}],"impacts":[{"descriptions":[{"lang":"en","value":"Spring Integration's JSON to object conversion uses the json__TypeId__ header to choose the deserialization target type, and resolves that header value to a class with ClassUtils.forName and no type/package allow-list."}]}],"affected":[{"vendor":"Spring","product":"Spring Integration","versions":[{"status":"affected","version":"7.1.0","versionType":"custom"},{"status":"affected","version":"7.0.0","lessThanOrEqual":"7.0.5","versionType":"custom"},{"status":"affected","version":"6.5.0","lessThanOrEqual":"6.5.10","versionType":"custom"},{"status":"affected","version":"6.4.0","lessThanOrEqual":"6.4.12","versionType":"custom"},{"status":"affected","version":"0","lessThanOrEqual":"5.5.21","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Spring Integration's JSON to object conversion uses the json__TypeId__ header to choose the deserialization target type, and resolves that header value to a class with ClassUtils.forName and no type/package allow-list.\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","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Spring Integration's JSON to object conversion uses the json__TypeId__ header to choose the deserialization target type, and resolves that header value to a class with ClassUtils.forName and no type/package allow-list.</p><p>Spring Integration 7.1.0<br/>Spring Integration 7.0.0 - 7.0.5<br/>Spring Integration 6.5.0 - 6.5.10<br/>Spring Integration 6.4.0 - 6.4.12<br/>Spring Integration 5.5.21 and earlier</p>"}]}],"references":[{"url":"https://spring.io/security/cve-2026-47856"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"}}],"source":{"discovery":"UNKNOWN"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-502","lang":"en","description":"CWE-502 Deserialization of Untrusted Data"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T15:08:55.775880Z","id":"CVE-2026-47856","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-27T15:12:42.355Z"}}]}}