CVE-2026-103761
Mooncake transfer engine through 0.3.13.post1 Memory Exhaustion via Unbounded Notify Queue
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-770 |
| Vendor | kvcache-ai |
| Product | mooncake |
| Published | Oct 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
kvcache-ai / Mooncake
0 ≤ 0.3.13.post1
References
github.com: https://github.com/kvcache-ai/Mooncake/issues/4445 github.com: https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-transfer-engine/src/transfer_metadata.cpp#L285-L296 github.com: https://github.com/kvcache-ai/Mooncake vulncheck.com: https://www.vulncheck.com/advisories/mooncake-transfer-engine-through-0.3.13-post1-memory-exhaustion-via-unbounded-notify-queue
Credits
Mingkai Yu Jiajia Liu