CVE-2026-84660 [MEDIUM] – A missing permission check in Jenkins Pipeline: Build Step Plugin 599.v4b_67ea_11b_152 and

A missing permission check in Jenkins Pipeline: Build Step Plugin 599.v4b_67ea_11b_152 and earlier causes downstream builds triggered by the `build` step to be canceled even when the build’s authentication lacks Item/Cancel permission on the downstream job.