CVE-2026-103760
Mooncake transfer engine through 0.3.13.post1 Denial of Service via P2P Handshake Daemon Response Write
- State
- Published
- Severity
- 8.2 High
- Published
- Oct 1, 2026
- Updated
- Oct 2, 2026
- Reserved
- Oct 1, 2026
Description
Mooncake transfer engine through 0.3.13.post1 contains a denial of service vulnerability that allows unauthenticated remote attackers to block the handshake daemon by never reading replies. Attackers can send a Metadata request to the handshake RPC port and stall SocketHandShakePlugin's single listener thread in writeFully(), breaking all subsequent handshakes, metadata fetches, notify and probe requests.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
Affected Products
| Product | Versions |
|---|---|
Mooncakekvcache-ai |
|
References
- GitHub Issue #4443issue-tracking
- https://github.com/kvcache-ai/Mooncake/blob/719735896c86b56fabec6cf3e825fb2ea640597a/mooncake-transfer-engine/src/transfer_metadata_plugin.cpp#L730-L803technical-description
- https://github.com/kvcache-ai/Mooncakeproduct
- VulnCheck Advisory: Mooncake transfer engine through 0.3.13.post1 Denial of Service via P2P Handshake Daemon Response Writethird-party-advisory
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