by Kastro
Paper/Archive/CVE-2026-47864

CVE-2026-47864

Spring Spring Integration — Unsafe Java deserialization in SerializingHttpMessageConverter — remote code execution

EPSS 6%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 93.2.932 × 2018.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
Spring Integration7.1.0–CNA
Spring Integration7.0.0 – 7.0.5–CNA
Spring Integration6.5.0 – 6.5.10–CNA
Spring Integration6.4.0 – 6.4.12–CNA
Spring Integration≤ 5.5.21–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vmware (CNA)6.4CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refspring.io/security/cve-2026-47864