CVE-2026-106039

Description

Mooncake Store master through 0.3.13.post1 contains a missing authorization vulnerability that allows unauthenticated attackers to create, steal, and falsely complete replication tasks via the coro_rpc port. Attackers can invoke CreateCopyTask, CreateMoveTask, FetchTasks, and MarkTaskToComplete with victim client UUIDs disclosed by QueryTask to hijack task queues and record replication that never occurred.

References

• https://github.com/kvcache-ai/Mooncake
• https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-store/src/master_service.cpp#L12060-L12120
• https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-store/src/task_manager.cpp#L113-L135
• https://github.com/kvcache-ai/Mooncake/issues/4475
• https://www.vulncheck.com/advisories/mooncake-store-through-0.3.13-post1-missing-authorization-in-replication-task-rpc