Deserialization in Spring Integration
CVE-2026-47864
SerializingHttpMessageConverter deserializes the body of incoming HTTP requests with a raw java.io.ObjectInputStream and no class filtering. Any request with Content-Type application/x-java-serialized-object whose body resolves to a Serializable type is read directly via readObject(). If an application using this converter on an inbound HTTP endpoint has any known Java deserialization "gadget" on its classpath, a remote, unauthenticated attacker can achieve arbitrary code execution. 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
Vulnerability class: Insecure Deserialization
EPSS: 0.034 (88.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L.
Affected products
- Spring Integration — versions 7.1.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-47864?
- CVE-2026-47864 is a medium-severity vulnerability in Spring Integration, classified under Deserialization of Untrusted Data. CVSS score: 6.4/10. Published 2026-08-27.
- How severe is CVE-2026-47864?
- Medium severity. CVSS v3 base score is 6.4 out of 10.