EUVD-2026-66677

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. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Sprin...

CVE-2026-47842

Spring Security 's AesBytesEncryptor deterministically encrypts data with AES/CBC when the two-argument constructor is used or a null IV generator is passed with CBC mode, resulting in a null (all-zero) initialization vector . This causes identical plaintexts to always produce identical ciphertex...

CVE-2026-47842 Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation

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. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Sprin...