CVE-2026-59321

Summary

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 Software

VendorProductVersion RangeStatus
SpringSpring Integration7.1.0affected
SpringSpring Integration7.0.0 <= 7.0.5affected
SpringSpring Integration6.5.0 <= 6.5.10affected
SpringSpring Integration6.4.0 <= 6.4.12affected
SpringSpring Integration0 <= 5.5.21affected

Weaknesses

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

References