CVE-2026-59321

published 2026-08-27

CVE-2026-59321: A single ScriptEngine instance is reused for every message on a script-backed channel. For JSR-223 engines that report THREADING=null (not thread-safe, e.g…

Priority P4 28 medium 5.4 CVSS 3.1

AV N AC L PR L UI N S U C L I L A N

A single ScriptEngine instance is reused for every message on a script-backed channel. For JSR-223 engines that report THREADING=null (not thread-safe, e.g. the Kotlin kts engine), concurrent message processing can corrupt engine-internal state, potentially leaking one message's payload/headers bindings into another message's script evaluation or throwing spurious exceptions.
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

10 ranges

Vendor	Product	Version range	Fixed in
spring	spring_integration	<= 5.5.21	—
spring	spring_integration	—	—
spring	spring_integration	6.4.0 – 6.4.12	—
spring	spring_integration	6.5.0 – 6.5.10	—
spring	spring_integration	7.0.0 – 7.0.5	—
vmware	spring_integration	<= 5.5.21	—
vmware	spring_integration	6.4.0 – 6.4.12	—
vmware	spring_integration	6.5.0 – 6.5.10	—
vmware	spring_integration	>= 7.0.0 < 7.0.5.1	7.0.5.1
vmware	spring_integration	>= 7.1.0 < 7.1.0.1	7.1.0.1

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CWE-362