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
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
History

Wed, 26 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring spring Security
Weaknesses CWE-327
CWE-330
Vendors & Products Spring
Spring spring Security

Wed, 26 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 26 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
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
Title Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-08-26T19:45:25.424Z

Reserved: 2026-05-20T10:00:51.004Z

Link: CVE-2026-47842

cve-icon Vulnrichment

Updated: 2026-08-26T19:45:19.360Z

cve-icon NVD

Status : Received

Published: 2026-08-26T20:17:25.753

Modified: 2026-08-26T20:17:25.753

Link: CVE-2026-47842

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T20:45:03Z

Weaknesses