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CVE PROGRAM SOURCE RECORD4.2 Medium

CVE-2026-59321

Shared JSR-223 ScriptEngine evaluated concurrently without THREADING check

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Spring Spring Integration

Default version status: unaffected

  • 7.1.0affected
  • 7.0.0 to ≤ 7.0.5affected
  • 6.5.0 to ≤ 6.5.10affected
  • 6.4.0 to ≤ 6.4.12affected
  • 0 to ≤ 5.5.21affected

References