CVE-2026-47864

Unsafe Java deserialization in SerializingHttpMessageConverter — remote code execution

Published: Aug 27, 2026Updated: Sep 2, 2026 Sources: CVE List NVDCWE-502

6.4MEDIUM

Description

SerializingHttpMessageConverter deserializes the body of incoming HTTP requests with a raw java.io.ObjectInputStream and no class filtering. Any request with Content-Type application/x-java-serialized-object whose body resolves to a Serializable type is read directly via readObject(). If an application using this converter on an inbound HTTP endpoint has any known Java deserialization "gadget" on its classpath, a remote, unauthenticated attacker can achieve arbitrary code execution. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12 Spring Integration 5.5.21 and earlier

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:LIntegrity

Low

A:LAvailability

Low

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Weaknesses

CWE-502

Affected Products

Spring

oss-projectaka spring boot, spring security, spring framework

Spring Integration

OSS Libraries

vmware

commercial·USaka vmware inc

spring integrationOn-prem

Cloud & SaaS / container-orchestration

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques

Execution

Initial Access

View detailed technique mapping

References

https://spring.io/security/cve-2026-47864

spring.io

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