CVE-2026-47856

JsonToObjectTransformer resolves the json__TypeId__ message header to an arbitrary class without an allow-list

Published Aug 26, 2026 CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
Spring Integration's JSON to object conversion uses the json__TypeId__ header to choose the deserialization target type, and resolves that header value to a class with ClassUtils.forName and no type/package allow-list.
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

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
First Time appeared Vmware
Vmware spring Integration
CPEs cpe:2.3:a:vmware:spring_integration:*:*:*:*:*:*:*:*
Vendors & Products Vmware
Vmware spring Integration
Type Values Removed Values Added
Weaknesses CWE-20
CWE-415
Type Values Removed Values Added
Weaknesses CWE-502
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Spring
Spring spring Integration
Weaknesses CWE-20
CWE-415
Vendors & Products Spring
Spring spring Integration
Type Values Removed Values Added
Description Spring Integration's JSON to object conversion uses the json__TypeId__ header to choose the deserialization target type, and resolves that header value to a class with ClassUtils.forName and no type/package allow-list. 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
Title JsonToObjectTransformer resolves the json__TypeId__ message header to an arbitrary class without an allow-list
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
vmware
Published
Updated
Aug 27, 2026, 3:12 PM
Reserved
May 20, 2026, 10:00 AM
Status
Analyzed
Published
Aug 27, 2026, 1:17 AM
Modified
Sep 4, 2026, 8:09 PM