CVE-2026-47842

Summary

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 Spring Security 6.4.0 - 6.4.18 Spring Security 5.8.0 - 5.8.27 Spring Security 5.7.0 - 5.7.25

Affected Software

VendorProductVersion RangeStatus
SpringSpring Security7.1.0affected
SpringSpring Security7.0.0 <= 7.0.6affected
SpringSpring Security6.5.0 <= 6.5.11affected
SpringSpring Security6.4.0 <= 6.4.18affected
SpringSpring Security5.8.0 <= 5.8.27affected
SpringSpring Security5.7.0 <= 5.7.25affected

Weaknesses

  • CWE-329 Generation of Predictable IV with CBC Mode

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References