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

Project Subscriptions

Vendors Products
Spring Integration Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
History

Fri, 28 Aug 2026 07:45:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring spring Integration
Vendors & Products Spring
Spring spring Integration

Fri, 28 Aug 2026 07:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-667

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
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
Title Shared JSR-223 ScriptEngine evaluated concurrently without THREADING check
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-08-27T18:04:49.035Z

Reserved: 2026-07-04T18:14:10.167Z

Link: CVE-2026-59321

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-27T20:17:58.147

Modified: 2026-08-27T20:17:58.147

Link: CVE-2026-59321

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T07:30:07Z

Weaknesses