Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server.
History

Mon, 05 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 03 Oct 2026 01:15:00 +0000

Type Values Removed Values Added
First Time appeared Kvcache-ai
Kvcache-ai mooncake
Vendors & Products Kvcache-ai
Kvcache-ai mooncake

Fri, 02 Oct 2026 23:30:00 +0000

Type Values Removed Values Added
Description Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server.
Title Mooncake before 0.3.12 Out-of-Bounds Read via P2P Handshake readString
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-02T23:28:44.691Z

Updated: 2026-10-05T16:08:38.788Z

Reserved: 2026-10-02T00:50:26.603Z

Link: CVE-2026-104433

cve-icon Vulnrichment

Updated: 2026-10-05T16:08:32.473Z

cve-icon NVD

Status : Deferred

Published: 2026-10-03T00:16:35.253

Modified: 2026-10-06T15:25:00.650

Link: CVE-2026-104433

cve-icon Redhat

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