{"id":"CVE-2026-47878","state":"PUBLISHED","title":"Unsafe Java deserialization in DefaultExecutionContextSerializer without class allowlist","description":"DefaultExecutionContextSerializer, used by default in Spring Batch's JDBC job repository, passes Base64-decoded bytes directly to ObjectInputStream.readObject() without an ObjectInputFilter that restricts types to a trusted class allowlist.\nSpring Batch 6.0.0 - 6.0.4\nSpring Batch 5.2.6 and earlier","publishedAt":"2026-08-27T05:20:23.462Z","updatedAt":"2026-08-27T14:32:28.405Z","severity":{"score":5.6,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","source":"vmware"},"assigner":"vmware","products":["Spring Spring Batch"],"affected":[{"vendor":"Spring","product":"Spring Batch","defaultStatus":"unaffected","versions":[{"version":"6.0.0","status":"affected","lessThanOrEqual":"6.0.4","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"5.2.6","versionType":"custom"}]}],"references":["https://spring.io/security/cve-2026-47878"],"weaknesses":["CWE-502"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/47xxx/CVE-2026-47878.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47878","state":"PUBLISHED","datePublished":"2026-08-27T05:20:23.462Z","dateUpdated":"2026-08-27T14:32:28.405Z","assignerShortName":"vmware","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateReserved":"2026-05-20T10:00:58.694Z"},"containers":{"cna":{"title":"Unsafe Java deserialization in DefaultExecutionContextSerializer without class allowlist","descriptions":[{"lang":"en","value":"DefaultExecutionContextSerializer, used by default in Spring Batch's JDBC job repository, passes Base64-decoded bytes directly to ObjectInputStream.readObject() without an ObjectInputFilter that restricts types to a trusted class allowlist.\nSpring Batch 6.0.0 - 6.0.4\nSpring Batch 5.2.6 and earlier"}],"affected":[{"vendor":"Spring","product":"Spring Batch","defaultStatus":"unaffected","versions":[{"version":"6.0.0","status":"affected","lessThanOrEqual":"6.0.4","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"5.2.6","versionType":"custom"}]}],"references":[{"url":"https://spring.io/security/cve-2026-47878"}],"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:L/I:L/A:L","baseScore":5.6,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-502 Deserialization of Untrusted Data","type":"CWE"}]}],"providerMetadata":{"shortName":"vmware","orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateUpdated":"2026-08-27T05:21:29.918Z"},"impacts":[{"descriptions":[{"lang":"en","value":"DefaultExecutionContextSerializer, used by default in Spring Batch's JDBC job repository, passes Base64-decoded bytes directly to ObjectInputStream.readObject() without an ObjectInputFilter that restricts types to a trusted class allowlist."}]}],"source":{"discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T14:30:21.504502Z","id":"CVE-2026-47878","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","type":"CWE","lang":"en","description":"CWE-502 Deserialization of Untrusted Data"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T14:32:28.405Z"}}]}}}