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High · 7.5 CVE-2026-104433 EUVD-2026-91849GHSA-ccgr-wx5m-4h7g

Mooncake before 0.3.12 Out-of-Bounds Read via P2P Handshake readString

Published Oct 2, 2026 · Updated Oct 5, 2026 · Assigned by VulnCheck

Description

Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server.

Affected products

VendorProductAffectedFixed
kvcache-ai Mooncake < 0.3.12 0.3.12

References