---
id: CVE-2026-106039
title: >-
  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
summary: >-
  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
  CreateCo…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-862
vendor: kvcache-ai
product: Mooncake
affected:
  - Mooncake <= 0.3.13.post1
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T16:17:07.017'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106039'
references:
  - url: 'https://github.com/kvcache-ai/Mooncake'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-store/src/master_service.cpp#L12060-L12120
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-store/src/task_manager.cpp#L113-L135
    label: disclosure@vulncheck.com
  - url: 'https://github.com/kvcache-ai/Mooncake/issues/4475'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/mooncake-store-through-0.3.13-post1-missing-authorization-in-replication-task-rpc
    label: disclosure@vulncheck.com
  - url: 'https://github.com/kvcache-ai/Mooncake/issues/4475'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-06T15:32:13.485050Z'
ingestedAt: '2026-10-06T15:01:49.289Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.