Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-326.
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
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| VMware | 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 | — | No fix listed | CNA |
- Spring Security VendorVMware Affected 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 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:* | 5.7.0 to before 5.7.26; 5.8.0 to before 5.8.28; 6.4.0 to before 6.4.19; 6.5.0 to before 6.5.12; 7.0.0 to before 7.0.6.1; 7.1.0 to before 7.1.0.1 | Vulnerable | VMware |
- cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:* Versions 5.7.0 to before 5.7.26; 5.8.0 to before 5.8.28; 6.4.0 to before 6.4.19; 6.5.0 to before 6.5.12; 7.0.0 to before 7.0.6.1; 7.1.0 to before 7.1.0.1 Vulnerable ·VMware
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Developer Tools and Services | Affected | No fix planned: Out of support scope |
| Red Hat Fuse 7 | Affected | No fix planned: Out of support scope |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet: Fix deferred |
| Red Hat Single Sign-On 7 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-47842
- 2026-10-03 Alias added: GHSA-7274-w8xr-fr2w
References
More VMware Spring Security vulnerabilities
- TI-2023-16900 Improper access control in Spring Security CVSS 3.1CRITICAL 9.8
- TI-2022-13611 Authorization bypass in Spring by VMware CVSS 3.1CRITICAL 9.8
- TI-2022-07154 Incorrect authorization in Spring Security CVSS 3.1CRITICAL 9.8
- TI-2026-42404 Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN on all network interfaces CVSS 3.1CRITICAL 9.4
- TI-2026-18257 Under Some Conditions Spring Security HTTP Headers Are not Written CVSS 3.1CRITICAL 9.1
- TI-2014-02853 Improper authentication in Pivotal Spring Security CVSS 3.0CRITICAL 9.8
Sources
- CVE-2026-47842 · CVE Program
- CVE-2026-47842 · NVD
- FIRST EPSS
- GHSA-7274-w8xr-fr2w · GitHub Advisory Database · CC BY 4.0
- CVE-2026-47842 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences