CVE-2026-59321
Shared JSR-223 ScriptEngine evaluated concurrently without THREADING check
CVSS Score
4.2
EPSS Score
0.0%
EPSS Percentile
0th
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
| Vendor | spring |
| Product | spring integration |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Aug 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Spring / Spring Integration
7.1.0 7.0.0 ≤ 7.0.5 6.5.0 ≤ 6.5.10 6.4.0 ≤ 6.4.12 0 ≤ 5.5.21