CVE-2026-103761
Mooncake transfer engine through 0.3.13.post1 Memory Exhaustion via Unbounded Notify Queue
- State
- Published
- Severity
- 8.7 High
- Published
- Oct 1, 2026
- Updated
- Oct 6, 2026
- Reserved
- Oct 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
Mooncakekvcache-ai |
|
References
- GitHub Issue #4445issue-tracking
- https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-transfer-engine/src/transfer_metadata.cpp#L285-L296technical-description
- https://github.com/kvcache-ai/Mooncakeproduct
- VulnCheck Advisory: Mooncake transfer engine through 0.3.13.post1 Memory Exhaustion via Unbounded Notify Queuethird-party-advisory
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