The EmbeddedHeadersJsonMessageMapper defaults to an overly permissive header parsing posture in its constructor. When decodeNativeFormat processes raw byte payloads, it deserializes embedded JSON headers into a plain Map and constructs a GenericMessage with MutableMessageHeaders without sanitizing or filtering untrusted header names by default.
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
MEDIUM
Vulnerability intelligence
CVE-2026-59322
CVSS 3.16.3
SeverityMedium
Known exploitedNo
NVD references:
Primary source: NIST National Vulnerability Database