CVE-2026-103765
Mooncake through 0.3.13.post1 contains a missing authentication vulnerability in the HTTP metadata…
- Risk score
- 70/100
- CVSS
- 9.4 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 2 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.4 critical
- Remotely exploitable without logging in
References
- https://github.com/kvcache-ai/Mooncake
- https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-wheel/mooncake/http_metadata_server.py#L61-L106
- https://github.com/kvcache-ai/Mooncake/issues/4444
- https://www.vulncheck.com/advisories/mooncake-through-0.3.13-post1-missing-authentication-in-http-metadata-server
- https://github.com/kvcache-ai/Mooncake/issues/4444
Original 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.
Last activity 2 Oct 2026. Patch Forecast updates every hour.