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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00241.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Spring Spring Integration unaffected
Version Status Constraints
7.1.0 affected —
7.0.0 affected ≤ 7.0.5
6.5.0 affected ≤ 6.5.10
6.4.0 affected ≤ 6.4.12
0 affected ≤ 5.5.21

Configuration 1 [-]

OR cpe:2.3:a:vmware:spring_integration:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:spring_integration:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:spring_integration:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:spring_integration:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:spring_integration:*:*:*:*:*:*:*:*

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://spring.io/security/cve-2026-47856 cve-icon cve-icon
History

Fri, 04 Sep 2026 20:15:00 +0000

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

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-415

Thu, 27 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502
Metrics ssvc

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

Thu, 27 Aug 2026 01:45:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring spring Integration
Weaknesses CWE-20
CWE-415
Vendors & Products Spring
Spring spring Integration

Thu, 27 Aug 2026 00:30:00 +0000

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-08-27T15:12:42.355Z

Reserved: 2026-05-20T10:00:55.156Z

Link: CVE-2026-47856

cve-icon Vulnrichment

Updated: 2026-08-27T15:12:36.363Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-27T01:17:32.487

Modified: 2026-09-04T20:09:41.550

Link: CVE-2026-47856

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T08:00:13Z

Weaknesses