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CVE WatchAug 26, 2026

CVE-2026-47842

Applications using AesBytesEncryptor with the two-argument constructor or when passing a null IV generator and CBC as the encryption mode en

CVSS

6.5

Medium

EPSS

—

KEV

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Exploit Today

—

0-100

Published: Aug 26, 2026 · Last modified: Aug 26, 2026

EPSS · 30d

Not enough EPSS history yet.

Technical 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. 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

Official references
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