Is CVE-2026-103760 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-103760?

CVE-2026-103760 has a CVSS v3 severity of MEDIUM (5.9).

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CVE-2026-103760

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.