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Medium · 4.2 CVE-2026-59321 EUVD-2026-67202GHSA-jwww-wmvq-qm8j

Shared JSR-223 ScriptEngine evaluated concurrently without THREADING check

Published Aug 27, 2026 · Updated Aug 28, 2026 · Assigned by vmware

Description

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 products

VendorProductAffectedFixed
Spring Spring Integration 7.1.0, 7.0.0 – ≤ 7.0.5, 6.5.0 – ≤ 6.5.10, 6.4.0 – ≤ 6.4.12, ≤ 5.5.21 —

References