Shared JSR-223 ScriptEngine evaluated concurrently without THREADING check
Published Aug 27, 2026
5.4
MEDIUMCVSS 3.1
EPSS 0.18%
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 0StatusaffectedConstraints<=5.5.21
- Version 6.4.0StatusaffectedConstraints<=6.4.12
- Version 6.5.0StatusaffectedConstraints<=6.5.10
- Version 7.0.0StatusaffectedConstraints<=7.0.5
- Version 7.1.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spring | Spring Integration | unaffected |
|
- ≤ 5.5.21
- ≥ 6.4.0 · ≤ 6.4.12
- ≥ 6.5.0 · ≤ 6.5.10
- ≥ 7.0.0 · < 7.0.5.1
- ≥ 7.1.0 · < 7.1.0.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (1)
- https://spring.io/security/cve-2026-59321 Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://spring.io/security/cve-2026-59321 | Vendor Advisory |
Change history (0)
No recorded changes yet.