CVE-2026-110118

Description

WorkFlow-Engine through 9.6.11 contains a missing authorization vulnerability that allows authenticated users to complete or reassign other users' workflow tasks via /vue/buttonOperation endpoints. Low-privileged attackers can supply a known taskId to the complete, completeTask or reAssign handlers to approve tasks or reassign them without authority.

References

• https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-flowableui/risenet-y9boot-support-flowableui/src/main/java/net/risesoft/controller/buttonOperation/ButtonOperationRestController.java#L1035-L1054
• https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-flowableui/risenet-y9boot-support-flowableui/src/main/java/net/risesoft/controller/buttonOperation/ButtonOperationRestController.java#L216-L252
• https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-processadmin/risenet-y9boot-support-processadmin/src/main/java/net/risesoft/service/impl/CustomTaskServiceImpl.java#L76-L79
• https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/workflow-engine-task-op-missing-authz
• https://www.vulncheck.com/advisories/workflow-engine-through-9.6.11-missing-authorization-via-flowableui-buttonoperation-endpoints