{"id":"CVE-2026-104433","published":"2026-10-03T00:16:35.253","lastModified":"2026-10-06T15:25:00.650","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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://github.com/kvcache-ai/Mooncake","tags":[]},{"url":"https://github.com/kvcache-ai/Mooncake/commit/c142b40590259360196d8e504b2193382529e7b4","tags":[]},{"url":"https://github.com/kvcache-ai/Mooncake/issues/4452","tags":[]},{"url":"https://www.vulncheck.com/advisories/mooncake-before-0.3.12-out-of-bounds-read-via-p2p-handshake-readstring","tags":[]},{"url":"https://github.com/kvcache-ai/Mooncake/issues/4452","tags":[]}],"exploitRefs":[{"url":"https://github.com/kvcache-ai/Mooncake","tags":[]},{"url":"https://github.com/kvcache-ai/Mooncake/commit/c142b40590259360196d8e504b2193382529e7b4","tags":[]},{"url":"https://github.com/kvcache-ai/Mooncake/issues/4452","tags":[]},{"url":"https://github.com/kvcache-ai/Mooncake/issues/4452","tags":[]}],"hasPoc":true,"ai":{"summary":"The Mooncake transfer engine has an out-of-bounds read vulnerability in its string parsing function that can be triggered by sending a zero-length handshake frame, allowing unauthenticated attackers to crash the service and potentially disrupt SGLang inference server operations.","exploitability":"Exploitation is straightforward as attackers need only connect to the handshake port and send an eight-byte frame to trigger the crash, requiring no authentication or complex payloads.","blast_radius":"The impact could be significant for systems running SGLang inference servers that are exposed to untrusted networks, potentially causing service disruption and denial of service attacks.","remediation":"Upgrade to version 0.3.12 or later which contains the fix for the out-of-bounds read vulnerability in include/common.h.","detection":"Monitor for unexpected process termination or crash logs from the Mooncake transfer engine, particularly when connections are made to the handshake port on all interfaces.","tags":["denial-of-service","network-service","unauthenticated"],"model":"garnet-coder","analyzedAt":"2026-10-12T09:02:12.458Z"}}