CVE-2026-41855
CRITICAL WAF: Medium
CVSS 9.8
Published: 2026-06-09
CWE-502
In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
WAF Coverage Analysis
Insecure Deserialization
Medium WAF Coverage
OWASP: A08:2021 Software and Data Integrity Failures
944xxx - Java Attack
Affected Software
| Vendor | Product | Version |
|---|---|---|
| vmware | spring_framework | 5.3.0 - 5.3.49 |
| vmware | spring_framework | 6.1.0 - 6.1.28 |
| vmware | spring_framework | 6.2.0 - 6.2.18.1 |
| vmware | spring_framework | 7.0.0 - 7.0.7.1 |
References
- spring.io (Vendor Advisory)