{"id":"CVE-2026-47842","state":"PUBLISHED","title":"Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation","description":"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","publishedAt":"2026-08-26T19:22:23.745Z","updatedAt":"2026-08-26T19:45:25.424Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","source":"vmware"},"assigner":"vmware","products":["Spring Spring Security"],"affected":[{"vendor":"Spring","product":"Spring Security","defaultStatus":"unaffected","versions":[{"version":"7.1.0","status":"affected","versionType":"custom"},{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.0.6","versionType":"custom"},{"version":"6.5.0","status":"affected","lessThanOrEqual":"6.5.11","versionType":"custom"},{"version":"6.4.0","status":"affected","lessThanOrEqual":"6.4.18","versionType":"custom"},{"version":"5.8.0","status":"affected","lessThanOrEqual":"5.8.27","versionType":"custom"},{"version":"5.7.0","status":"affected","lessThanOrEqual":"5.7.25","versionType":"custom"}]}],"references":["https://spring.io/security/cve-2026-47842"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/47xxx/CVE-2026-47842.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47842","state":"PUBLISHED","datePublished":"2026-08-26T19:22:23.745Z","dateUpdated":"2026-08-26T19:45:25.424Z","assignerShortName":"vmware","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateReserved":"2026-05-20T10:00:51.004Z"},"containers":{"cna":{"title":"Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation","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"}],"affected":[{"vendor":"Spring","product":"Spring Security","defaultStatus":"unaffected","versions":[{"version":"7.1.0","status":"affected","versionType":"custom"},{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.0.6","versionType":"custom"},{"version":"6.5.0","status":"affected","lessThanOrEqual":"6.5.11","versionType":"custom"},{"version":"6.4.0","status":"affected","lessThanOrEqual":"6.4.18","versionType":"custom"},{"version":"5.8.0","status":"affected","lessThanOrEqual":"5.8.27","versionType":"custom"},{"version":"5.7.0","status":"affected","lessThanOrEqual":"5.7.25","versionType":"custom"}]}],"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"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-329 Generation of Predictable IV with CBC Mode","type":"CWE"}]}],"providerMetadata":{"shortName":"vmware","orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateUpdated":"2026-08-26T19:22:23.745Z"},"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."}]}],"source":{"discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-26T19:45:25.424Z"}}]}}}