{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47842","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","state":"PUBLISHED","assignerShortName":"vmware","dateReserved":"2026-05-20T10:00:51.004Z","datePublished":"2026-08-26T19:22:23.745Z","dateUpdated":"2026-08-26T19:45:25.424Z"},"containers":{"cna":{"providerMetadata":{"orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","shortName":"vmware","dateUpdated":"2026-08-26T19:22:23.745Z"},"title":"Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation","problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-329 Generation of Predictable IV with CBC Mode","type":"CWE"}]}],"impacts":[{"descriptions":[{"lang":"en","value":"Applications using AesBytesEncryptor with the two-argument constructor or when passing a null IV generator and CBC as the encryption mode encrypt data with AES/CBC using a null (all-zero) initialization vector."}]}],"affected":[{"vendor":"Spring","product":"Spring Security","versions":[{"status":"affected","version":"7.1.0","versionType":"custom"},{"status":"affected","version":"7.0.0","lessThanOrEqual":"7.0.6","versionType":"custom"},{"status":"affected","version":"6.5.0","lessThanOrEqual":"6.5.11","versionType":"custom"},{"status":"affected","version":"6.4.0","lessThanOrEqual":"6.4.18","versionType":"custom"},{"status":"affected","version":"5.8.0","lessThanOrEqual":"5.8.27","versionType":"custom"},{"status":"affected","version":"5.7.0","lessThanOrEqual":"5.7.25","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Applications using AesBytesEncryptor with the two-argument constructor or when passing a null IV generator and CBC as the encryption mode encrypt data with AES/CBC using a null (all-zero) initialization vector.\nSpring Security 7.1.0\nSpring Security 7.0.0 - 7.0.6\nSpring Security 6.5.0 - 6.5.11\nSpring Security 6.4.0 - 6.4.18\nSpring Security 5.8.0 - 5.8.27\nSpring Security 5.7.0 - 5.7.25","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Applications using AesBytesEncryptor with the two-argument constructor or when passing a null IV generator and CBC as the encryption mode encrypt data with AES/CBC using a null (all-zero) initialization vector.</p><p>Spring Security 7.1.0<br/>Spring Security 7.0.0 - 7.0.6<br/>Spring Security 6.5.0 - 6.5.11<br/>Spring Security 6.4.0 - 6.4.18<br/>Spring Security 5.8.0 - 5.8.27<br/>Spring Security 5.7.0 - 5.7.25</p>"}]}],"references":[{"url":"https://spring.io/security/cve-2026-47842"}],"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:H/I:N/A:N","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}}],"source":{"discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-26T19:31:49.138588Z","id":"CVE-2026-47842","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":"2026-08-26T19:45:25.424Z"}}]}}