PT-2026-47666 · Spring · Spring Framework

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-41855

NVD

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2026-41855

Affected Products

Spring Framework

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-41855 · Security Note
• https://spring.io/security/cve-2026-41855 · Note