CVE-2026-106038: Mooncake Store through 0.3.13.post1 Unauthenticated Object Deletion via Remove RPCs

Severity: high (CVSS 8.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-06 · updated 2026-10-09
Weakness: CWE-306

Description

Mooncake Store master through 0.3.13.post1 contains a missing authentication vulnerability that allows unauthenticated attackers to force-delete any object via Remove, RemoveByRegex, RemoveAll and BatchRemove on the coro_rpc port. Attackers can send forged requests with the force flag set to bypass lease checks, wipe keys matching any regex, or clear the entire store, causing cache loss and request failures.

Affected products

kvcache-ai Mooncake: through 0.3.13.post1

References

https://github.com/kvcache-ai/Mooncake
https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-store/src/master_service.cpp#L6416-L6478
https://github.com/kvcache-ai/Mooncake/issues/4474
https://www.vulncheck.com/advisories/mooncake-store-through-0.3.13-post1-unauthenticated-object-deletion-via-remove-rpcs

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