Auth bypass in Kvcache-Ai Mooncake
CVE-2026-106041
Mooncake Store master through 0.3.13.post1 contains a missing authorization vulnerability that allows unauthenticated attackers to inject completed LOCAL_DISK replicas through the NotifyOffloadSuccess RPC. Attackers can mount a local disk segment with a self-chosen client UUID, then attach replicas pointing at attacker-controlled endpoints to serve poisoned disk-tier reads and fake key existence.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
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
Weakness classification (CWE)
References
- github.com/kvcache-ai/Mooncake (product)
- github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mo… (technical-description)
- github.com/kvcache-ai/Mooncake/issues/4479 (issue-tracking)
- www.vulncheck.com/advisories/mooncake-store-through-0.3.13-post1-missing-author… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-106041?
- CVE-2026-106041 is a medium-severity vulnerability in Kvcache-Ai Mooncake, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-10-06.
- How severe is CVE-2026-106041?
- Medium severity. CVSS v3 base score is 6.5 out of 10.