{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41855", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-04-22T06:22:10.081Z", "datePublished": "2026-06-09T03:51:57.287Z", "dateUpdated": "2026-06-09T03:51:57.287Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-06-09T03:51:57.287Z"}, "title": "Spring Framework Unsafe Deserialization via Jackson JMS Converters", "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-502: Deserialization of Untrusted Data", "cweId": "CWE-502", "type": "CWE"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "In an untrusted JMS environment, MappingJackson2MessageConverter and JacksonJsonMessageConverter allow arbitrary class instantiation via gadget class deserialization, potentially leading to unauthorized actions."}]}], "affected": [{"vendor": "Spring", "product": "Spring Framework", "defaultStatus": "unaffected", "versions": [{"status": "affected", "version": "7.0.0", "lessThan": "7.0.8", "versionType": "custom"}, {"status": "affected", "version": "6.2.0", "lessThan": "6.2.19", "versionType": "custom"}, {"status": "affected", "version": "6.1.0", "lessThan": "6.1.28", "versionType": "custom"}, {"status": "affected", "version": "5.3.0", "lessThan": "5.3.49", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48."}]}], "references": [{"url": "https://spring.io/security/cve-2026-41855"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48."}], "id": "CVE-2026-41855", "lastModified": "2026-06-09T05:16:37.770", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "security@vmware.com", "type": "Secondary"}]}, "published": "2026-06-09T05:16:37.770", "references": [{"source": "security@vmware.com", "url": "https://spring.io/security/cve-2026-41855"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "security@vmware.com", "type": "Secondary"}]}

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