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Back to active CVEs
Medium · CVSS 6.5CVE-2026-47842

Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext CorrelationCVE-2026-47842

Answer in brief

CVE-2026-47842 records a Medium severity (CVSS 6.5) vulnerability in Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation. The current sources do not mark it as known exploited. The current feed maps Spring/Spring Security (generic), Spring/Spring Security (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 26, 2026Updated Sep 4, 2026Source checked Oct 11, 2026First seen by HOL Aug 26, 2026Material review Sep 4, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Spring/Spring Security (generic), Spring/Spring Security (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Spring/Spring Securitygeneric7.1.0 || 7.0.0 || 6.5.0 || 6.4.0 || 5.8.0 || 5.7.0Not reported
Spring/Spring Securitygeneric7.1.0 || >=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 <=5.7.25Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Spring/Spring Security, Spring/Spring Security.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 26, 2026

Sources and claim methodology

  • Source referencespring.io
Upstream source 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

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • JeecgBoot through 3.9.5 Missing Authorization via /sys/sysDepartPermission/deleteSame generic ecosystem
  • JeecgBoot through 3.9.5 Missing Authorization via sysDepartPermission queryById EndpointSame generic ecosystem
  • JeecgBoot through 3.9.5 Missing Authorization via /sys/sysDepartPermission/addSame generic ecosystem
  • JeecgBoot through 3.9.5 Missing Authorization via sysDepartPermission deleteBatch EndpointSame generic ecosystem
  • JeecgBoot through 3.9.5 Missing Authorization via getDepartmentHead EndpointSame generic ecosystem
  • JeecgBoot through 3.9.5 Missing Authorization via /sys/sysDepart/appImportExcelSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-329, CWE-326
Source
CVE List V5
Source checked
Oct 11, 2026
References
1 linked source
Open source record