CVE-2026-47842

MediumCVSS 6.5/10Last modified Sep 4, 2026

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

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-326

Affected software

Vendor	Product	Versions
Spring	Spring Security	7.1.0; >= 7.0.0, <= 7.0.6; >= 6.5.0, <= 6.5.11; >= 6.4.0, <= 6.4.18; >= 5.8.0, <= 5.8.27; >= 5.7.0, <= 5.7.25

References

https://spring.io/security/cve-2026-47842Vendor Advisory

Timeline

Published: Aug 26, 2026
Last modified: Sep 4, 2026
NVD status: Analyzed

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