Deserialization Vulnerability in Spring Integration by Pivotal Software
CVE-2026-47856

6.3MEDIUM

Key Information:

Vendor

Spring

Status
Spring Integration
Vendor
CVE Published:
26 August 2026

What is CVE-2026-47856?

This vulnerability arises from the way Spring Integration interprets the json__TypeId__ header during JSON object conversion. It utilizes ClassUtils.forName without implementing a type or package allow-list, which can lead to unauthorized class resolution and potential code execution vulnerabilities in the affected versions of Spring Integration. This flaw emphasizes the importance of securing deserialization processes to mitigate risks associated with arbitrary code execution.

Affected Version(s)

Spring Integration 7.1.0

Spring Integration 7.0.0 <= 7.0.5

Spring Integration 6.5.0 <= 6.5.10

References

https://spring.io/security/cve-2026-47856

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.