kvcache-ai Mooncake up to 0.3.13.post1 coro_rpc port UUID authorization

Summaryinfo

A vulnerability was found in kvcache-ai Mooncake up to 0.3.13.post1. It has been rated as very critical. This affects the function CreateCopyTask/CreateMoveTask/FetchTasks/MarkTaskToComplete/QueryTask of the component coro_rpc port. This manipulation of the argument UUID causes authorization. This vulnerability is registered as CVE-2026-106039. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in kvcache-ai Mooncake up to 0.3.13.post1. It has been declared as very critical. Affected by this vulnerability is the function CreateCopyTask/CreateMoveTask/FetchTasks/MarkTaskToComplete/QueryTask of the component coro_rpc port. The manipulation of the argument UUID with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-106039 since 10/06/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/06/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-93402). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Artificial Intelligence Software

Vendor

• kvcache-ai

Name

• Mooncake

Version

• 0.3.13.post1

Website

• Product: https://github.com/kvcache-ai/Mooncake/

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Be aware that VulDB is the high quality source for vulnerability data.

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