Medium severity6.3NVD Advisory· Published Aug 27, 2026· Updated Sep 4, 2026
CVE-2026-47856
CVE-2026-47856
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
AI Insight
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Affected products
1- Range: <=5.5.21, 6.4.0-6.4.12, 6.5.0-6.5.10, 7.0.0-7.0.5, 7.1.0
Patches
Vulnerability mechanics
References
1- spring.io/security/cve-2026-47856nvdVendor Advisory
News mentions
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