CVE-2026-47842 (GCVE-0-2026-47842)

Vulnerability from cvelistv5 – Published: 2026-08-26 19:22 – Updated: 2026-08-26 19:45
VLAI
Title
Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation
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
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 19:31 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Spring Spring Security Affected: 7.1.0 (custom)
Affected: 7.0.0 , ≤ 7.0.6 (custom)
Affected: 6.5.0 , ≤ 6.5.11 (custom)
Affected: 6.4.0 , ≤ 6.4.18 (custom)
Affected: 5.8.0 , ≤ 5.8.27 (custom)
Affected: 5.7.0 , ≤ 5.7.25 (custom)
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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