GitHub Advisoryadvisory · Maven

GHSA-x863-p983-p4f7 Spring Framework Unsafe Deserialization via Jackson JMS Converters

HIGH Published 2026-06-09 Modified 2026-09-08 Official page ↗
Aliases
CVE-2026-41855
Ecosystem
Maven
Packages
org.springframework:spring-jms
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-502
Reviewed
2026-09-08

Affected packages

• Maven org.springframework:spring-jms: <= 5.3.39 (no fix yet) • Maven org.springframework:spring-jms: >= 6.0.0, <= 6.1.21 (no fix yet) • Maven org.springframework:spring-jms: >= 6.2.0, < 6.2.19 → fixed in 6.2.19 • Maven org.springframework:spring-jms: >= 7.0.0-M1, < 7.0.8 → fixed in 7.0.8

Description

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.

Related

Alias · CVE (1)

  • CVE-2026-41855 In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and… vulnerability

Weakness · CWE (1)

  • CWE-502 Deserialization of Untrusted Data weakness

References