CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-41855
Critical (9.8) in vmware spring framework. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in org.springframework:spring-jms 6.2.19, 7.0.8.
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-31)
- CWE
- CWE-502
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vmware:spring_framework
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-x863-p983-p4f7 | Maven | org.springframework:spring-jms | <=5.3.39 | no fix published |
| GHSA-x863-p983-p4f7 | Maven | org.springframework:spring-jms | >=6.0.0 <=6.1.21 | no fix published |
| GHSA-x863-p983-p4f7 | Maven | org.springframework:spring-jms | >=6.2.0 <6.2.19 | 6.2.19 |
| GHSA-x863-p983-p4f7 | Maven | org.springframework:spring-jms | >=7.0.0-M1 <7.0.8 | 7.0.8 |