---
title: "CVE-2026-106040: Mooncake Store - Broken Access Control"
description: "Mooncake Store master through 0.3.13.post1 contains a missing authorization vulnerability in EvictDiskReplica and BatchEvictDiskReplica, letting unauthenticated attackers erase disk replicas across tenants, exploit requires access to coro_rpc master port."
url: https://panop.io/threat-heartbeat/CVE-2026-106040/
---

# CVE-2026-106040 Mooncake Store - Broken Access Control

Mooncake Store master through 0.3.13.post1 contains a missing authorization vulnerability in EvictDiskReplica and BatchEvictDiskReplica, letting unauthenticated attackers erase disk replicas across tenants, exploit requires access to coro\_rpc master port.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.38% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-106040)

## Details

Type

Broken Access Control

Impact

Denial Of Service, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Published

6 October 2026

Updated

15 October 2026

Weakness

[CWE-862](https://cwe.mitre.org/data/definitions/862.html)

## Vendor fix

Update to the latest version that patches the missing authorization vulnerability.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-106040](https://nvd.nist.gov/vuln/detail/CVE-2026-106040)
- [https://github.com/kvcache-ai/Mooncake](https://github.com/kvcache-ai/Mooncake)
- [https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-store/src/master\_service.cpp#L5507-L5515](https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-store/src/master_service.cpp#L5507-L5515)
- [https://github.com/kvcache-ai/Mooncake/issues/4478](https://github.com/kvcache-ai/Mooncake/issues/4478)
- [https://www.vulncheck.com/advisories/mooncake-store-through-0.3.13-post1-missing-authorization-via-evictdiskreplica-rpc](https://www.vulncheck.com/advisories/mooncake-store-through-0.3.13-post1-missing-authorization-via-evictdiskreplica-rpc)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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