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Critical · 9.4 CVE-2026-103765 EUVD-2026-91137GHSA-3mpp-98wg-qvr5

Mooncake through 0.3.13.post1 Missing Authentication in HTTP Metadata Server

Published Oct 1, 2026 · Updated Oct 2, 2026 · Assigned by VulnCheck

Description

Mooncake through 0.3.13.post1 contains a missing authentication vulnerability in the HTTP metadata server /metadata handler that allows unauthenticated attackers to read, overwrite, and delete transfer engine metadata keys. Attackers can poison segment descriptors such as tcp_data_port or re-create rpc_meta entries to redirect KV cache transfers to attacker-controlled listeners, or exhaust server memory.

Affected products

VendorProductAffectedFixed
kvcache-ai Mooncake ≤ 0.3.13.post1 —

References