{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103764","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-01T10:39:47.845Z","datePublished":"2026-10-01T23:19:57.849Z","dateUpdated":"2026-10-01T23:19:57.849Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-01T23:19:57.849Z"},"datePublic":"2026-10-01T00:00:00.000Z","title":"Mooncake transfer engine before 0.3.13 Unauthenticated Arbitrary Memory Read/Write via TCP Transport","descriptions":[{"lang":"en","value":"Mooncake transfer engine before 0.3.13 contains an untrusted pointer dereference in ServerSession::readHeader that allows unauthenticated attackers to read and write arbitrary process memory via the TCP transport data port. Attackers can send a crafted SessionHeader with arbitrary addr and size values using READ or WRITE opcodes to disclose KV cache contents, prompts and secrets or corrupt memory toward code execution."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Untrusted Pointer Dereference","cweId":"CWE-822","type":"CWE"}]}],"affected":[{"vendor":"kvcache-ai","product":"Mooncake","defaultStatus":"unaffected","packageURL":"pkg:pypi/mooncake-transfer-engine","versions":[{"version":"0","lessThan":"0.3.13","status":"affected","versionType":"custom"}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"references":[{"url":"https://github.com/kvcache-ai/Mooncake/issues/4441","tags":["issue-tracking"],"name":"GitHub Issue #4441"},{"url":"https://github.com/kvcache-ai/Mooncake/commit/a2933849417259e562fc9cbad63c618d464dfb2d","tags":["patch"]},{"url":"https://github.com/kvcache-ai/Mooncake/releases/tag/v0.3.13","tags":["release-notes"],"name":"Mooncake v0.3.13 Release Notes"},{"url":"https://github.com/kvcache-ai/Mooncake/blob/6041a609a8c3af35e778f70db344f145c2914980/mooncake-transfer-engine/src/transport/tcp_transport/tcp_transport.cpp#L209","tags":["technical-description"]},{"url":"https://github.com/kvcache-ai/Mooncake","tags":["product"]},{"name":"VulnCheck Advisory: Mooncake transfer engine before 0.3.13 Unauthenticated Arbitrary Memory Read/Write via TCP Transport","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/mooncake-transfer-engine-before-0.3.13-unauthenticated-arbitrary-memory-read-write-via-tcp-transport"}],"credits":[{"lang":"en","value":"Mingkai Yu","type":"finder"},{"lang":"en","value":"Jiajia Liu","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}