CVE-2026-47856CWE-502insecure-deserialization

CVE-2026-47856

Medium · published August 27, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
23.0
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00313 · 23.0th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-08-27T05:17Z
Affected products (5)
ProductVersionsFixed in
vmware/spring_integration< 5.5.225.5.22
vmware/spring_integration≥ 6.4.0, < 6.4.136.4.13
vmware/spring_integration≥ 6.5.0, < 6.5.116.5.11
vmware/spring_integration≥ 7.0.0, < 7.0.5.17.0.5.1
vmware/spring_integration≥ 7.1.0, < 7.1.0.17.1.0.1
References (1)
https://spring.io/security/cve-2026-47856 · [email protected]
EPSS history
Timeline
  • 28 AUG 06:43Z
    EPSS moved — → 0%
    epss
  • 26 AUG 23:28Z
    JsonToObjectTransformer resolves the json__TypeId__ message header to an arbitrary class without an allow-list
    cvelistv5