Deserialization of Untrusted Data in Spring Integration - CVE-2026-47864
Published: August 28, 2026
Vulnerability identifier: #VU146200
CSH Severity: Low
CVSS v4: 6.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-47864
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to unsafe java deserialization in SerializingHttpMessageConverter when processing inbound HTTP requests with Content-Type application/x-java-serialized-object. A remote user can send a specially crafted serialized request body to execute arbitrary code.
Exploitation requires an application to use this converter on an inbound HTTP endpoint and to have a known Java deserialization gadget on its classpath.
Affected software
Spring Integration
Library Support for Spring
Library Support for Spring
How to mitigate CVE-2026-47864
Install security update from vendor's website.
Spring Integration - addressed in versions 5.5.22, 6.4.13, 6.5.11, 7.0.5.1, 7.0.6, 7.1.0.1, 7.1.1
Library Support for Spring - update to 3.5.19
Library Support for Spring - update to 3.5.19