CVE-2026-41855
Fixed upstream EPSS <1%CVSS 8.1
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.
Products: Spring Framework
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.springframework:spring-jms | no fix |
| Maven | org.springframework:spring-jms | 6.2.19 |
| Maven | org.springframework:spring-jms | 7.0.8 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | apache-activemq-5.19 | no fix |
| Chainguard | apache-activemq-fips-5.19 | no fix |
| Debian 12 | libspring-java | no fix |
| Debian 13 | libspring-java | no fix |
| Debian 14 | libspring-java | no fix |
| Ubuntu 25.10 | libspring-java | no fix |
| Ubuntu 26.04 LTS | libspring-java | no fix |
| Ubuntu 26.10 | libspring-java | no fix |
| Ubuntu Pro 14.04 LTS | libspring-java | no fix |
| Ubuntu Pro 16.04 LTS | libspring-java | no fix |
| Ubuntu Pro 18.04 LTS | libspring-java | no fix |
| Ubuntu Pro 20.04 LTS | libspring-java | no fix |
| Ubuntu Pro 22.04 LTS | libspring-java | no fix |
| Ubuntu Pro 24.04 LTS | libspring-java | no fix |