CVE-2026-47856: JsonToObjectTransformer resolves the json__TypeId__ message header to an arbitrary class without an allow-list
Spring · Spring Integration
Affected: Spring Integration · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 24% of scored CVEs
DescriptionCVE.org
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
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Spring · Spring Integration7.1.0; from 7.0.0 up to and including 7.0.5; from 6.5.0 up to and including 6.5.10; from 6.4.0 up to and including 6.4.12; up to and including 5.5.21
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Spring
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-47856 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.