{"id":"CVE-2026-59321","summary":"Shared JSR-223 ScriptEngine evaluated concurrently without THREADING check","details":"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.\nSpring Integration 7.1.0\nSpring Integration 7.0.0 - 7.0.5\nSpring Integration 6.5.0 - 6.5.10\nSpring Integration 6.4.0 - 6.4.12\nSpring Integration 5.5.21 and earlier","modified":"2026-09-02T03:47:25.488301163Z","published":"2026-08-27T18:04:49.035Z","database_specific":{"cna_assigner":"vmware","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59321.json","unresolved_ranges":[{"extracted_events":[{"introduced":"7.1.0"},{"last_affected":"7.1.0"},{"introduced":"7.0.0"},{"last_affected":"7.0.5"},{"introduced":"6.5.0"},{"last_affected":"6.5.10"},{"introduced":"6.4.0"},{"last_affected":"6.4.12"},{"last_affected":"5.5.21"}],"source":"AFFECTED_FIELD"}]},"references":[{"type":"WEB","url":"https://spring.io/security/cve-2026-59321"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59321.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59321"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/spring-projects/spring-integration","events":[{"introduced":"57110e69a935c587df9c0d67541857faea2645c3"},{"last_affected":"5624e08f74a436c5709db81888f552a19ed779d1"},{"introduced":"79963f89e3cab04addfe32aa4b419e5ffb73e909"},{"fixed":"ae4c9bb8eff504f26b67cc6ac65fed2c8fb8382e"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:vmware:spring_integration:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"6.5.0"},{"last_affected":"6.5.10"},{"introduced":"7.1.0"},{"fixed":"7.1.0.1"}]}}],"versions":["v6.5.10","v6.5.9","v6.5.8","v6.5.7","v6.5.6","v7.0.1","v6.5.5","v7.0.0","v6.5.4","v7.0.0-RC2","v7.0.0-RC1","v6.5.3","v7.0.0-M3","v6.5.2","v7.0.0-M2","v7.0.0-M1","v6.5.1","v6.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59321.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}