What is CVE-2026-106040?

CVE-2026-106040 is a high-severity vulnerability in Kvcache-Ai Mooncake, classified under Missing Authorization. CVSS score: 8.2/10. Published 2026-10-06.

How severe is CVE-2026-106040?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Kvcache-Ai Mooncake

CVE-2026-106040

Mooncake Store master through 0.3.13.post1 contains a missing authorization vulnerability that allows unauthenticated attackers to erase any object's disk replica via EvictDiskReplica and BatchEvictDiskReplica. Attackers reaching the coro_rpc master port can evict DISK replicas across all tenants, deleting objects whose only remaining replica is on disk.

Vulnerability class: Broken Access Control

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Kvcache-Ai Mooncake

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/kvcache-ai/Mooncake (product)
github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mo… (technical-description)
github.com/kvcache-ai/Mooncake/issues/4478 (issue-tracking)
www.vulncheck.com/advisories/mooncake-store-through-0.3.13-post1-missing-author… (third-party-advisory)

Frequently asked questions

What is CVE-2026-106040?: CVE-2026-106040 is a high-severity vulnerability in Kvcache-Ai Mooncake, classified under Missing Authorization. CVSS score: 8.2/10. Published 2026-10-06.
How severe is CVE-2026-106040?: High severity. CVSS v3 base score is 8.2 out of 10.