CVE-2026-47842
Last modified
CVE-2026-47842 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.15% chance of exploitation in the next 30 days.
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vmware | Spring Security | >= 5.7.0, < 5.7.26 |
| Vmware | Spring Security | >= 5.8.0, < 5.8.28 |
| Vmware | Spring Security | >= 6.4.0, < 6.4.19 |
| Vmware | Spring Security | >= 6.5.0, < 6.5.12 |
| Vmware | Spring Security | >= 7.0.0, < 7.0.6.1 |
| Vmware | Spring Security | >= 7.1.0, < 7.1.0.1 |
References
- https://spring.io/security/cve-2026-47842Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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