CVE-2026-103765
Mooncake through 0.3.13.post1 Missing Authentication in HTTP Metadata Server
kvcache-ai Mooncake
CVSS
8.8HighExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 2 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.50%Chance of exploitation activity in the next 30 days, higher than 41% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- Mooncakeaffected: all versions through 0.3.13.post1CVE List
References 4
- vulncheck.com/advisories/mooncake-through-0.3.13-post1-missing-authentication-in-http-metadata-serverAdvisoryvia CVE List
- github.com/kvcache-ai/Mooncake/issues/4444Exploitvia CVE List
- github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-wheel/mooncake/http_metadata_server.py#L61-L106Referencevia CVE List
- github.com/kvcache-ai/MooncakeReferencevia CVE List