{"id":"CVE-2026-103765","title":"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","summary":"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…","severity":"critical","cvss":9.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","cwe":["CWE-306"],"vendor":"kvcache-ai","product":"Mooncake","affected":["Mooncake <= 0.3.13.post1"],"published":"2026-10-02","updated":"2026-10-02","sourceUpdated":"2026-10-02T20:16:59.943","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103765","references":[{"url":"https://github.com/kvcache-ai/Mooncake","label":"disclosure@vulncheck.com"},{"url":"https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-wheel/mooncake/http_metadata_server.py#L61-L106","label":"disclosure@vulncheck.com"},{"url":"https://github.com/kvcache-ai/Mooncake/issues/4444","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/mooncake-through-0.3.13-post1-missing-authentication-in-http-metadata-server","label":"disclosure@vulncheck.com"},{"url":"https://github.com/kvcache-ai/Mooncake/issues/4444","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-02T19:47:07.630675Z"},"epss":0.00624,"epssPercentile":0.497,"ingestedAt":"2026-10-02T00:04:54.728Z","slug":"CVE-2026-103765","body":"## Overview\n\nMooncake 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":64,"depthScoreParts":{"impact":51.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":215117,"id":"CVE-2026-103765","ts":1790980464884,"field":"exploit_available","old":"false","new":"true"}]}