{"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": "2026-08-26T23:28:43.829Z"}, "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"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Spring Integration", "vendor": "Spring", "versions": [{"status": "affected", "version": "7.1.0", "versionType": "custom"}, {"lessThanOrEqual": "7.0.5", "status": "affected", "version": "7.0.0", "versionType": "custom"}, {"lessThanOrEqual": "6.5.10", "status": "affected", "version": "6.5.0", "versionType": "custom"}, {"lessThanOrEqual": "6.4.12", "status": "affected", "version": "6.4.0", "versionType": "custom"}, {"lessThanOrEqual": "5.5.21", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "security@vmware.com"}], "cveTags": [], "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"}], "id": "CVE-2026-47856", "lastModified": "2026-08-27T01:17:32.487", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "security@vmware.com", "type": "Secondary"}]}, "published": "2026-08-27T01:17:32.487", "references": [{"source": "security@vmware.com", "url": "https://spring.io/security/cve-2026-47856"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "7.1.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[7.0.0,7.0.5]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.5.0,6.5.10]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.4.0,6.4.12]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,5.5.21]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Spring Integration", "source": "cna", "vendor": "Spring"}, "product": "spring_integration", "vendor": "spring"}], "created": "2026-08-27T01:30:13.816603+00:00", "updated": "2026-08-27T01:30:13.936291+00:00", "vendors": ["spring", "spring$PRODUCT$spring_integration"], "weaknesses": ["CWE-415", "CWE-20"]}