CVE-2026-103761
Mooncake transfer engine through 0.3.13.post1 Memory Exhaustion via Unbounded Notify Queue
kvcache-ai Mooncake
CVSS
8.7HighExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 6 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.37%Chance of exploitation activity in the next 30 days, higher than 29% 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 transfer engine through 0.3.13.post1 contains a memory exhaustion vulnerability in TransferMetadata::receivePeerNotify that allows unauthenticated attackers to grow process memory without limit. Attackers can repeatedly send notify frames up to 1 MB to the handshake RPC port, filling the uncapped notifys vector until the out-of-memory killer terminates the engine.
Text from CVE List
Affected versions 1
- Mooncakeaffected: all versions through 0.3.13.post1CVE List
References 4
- vulncheck.com/advisories/mooncake-transfer-engine-through-0.3.13-post1-memory-exhaustion-via-unbounded-notify-queueAdvisoryvia CVE List
- github.com/kvcache-ai/Mooncake/issues/4445Exploitvia CVE List
- github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-transfer-engine/src/transfer_metadata.cpp#L285-L296Referencevia CVE List
- github.com/kvcache-ai/MooncakeReferencevia CVE List