CVE-2026-104433
Published:October 02, 2026
Updated:October 11, 2026
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.
Affected Packages
https://github.com/kvcache-ai/Mooncake.git (GITHUB):
Affected version(s) >=v0.3.0 <v0.3.12Fix Suggestion:
Update to version v0.3.12mooncake-transfer-engine-cuda13 (PYTHON):
Affected version(s) >=0.3.9 <0.3.12Fix Suggestion:
Update to version 0.3.12mooncake-transfer-engine-non-cuda (PYTHON):
Affected version(s) >=0.3.7.post1 <0.3.12Fix Suggestion:
Update to version 0.3.12mooncake-transfer-engine-npu (PYTHON):
Affected version(s) =0.3.11.post1 <0.3.12Fix Suggestion:
Update to version 0.3.12mooncake-transfer-engine (PYTHON):
Affected version(s) >=0.3.0 <0.3.12Fix Suggestion:
Update to version 0.3.12Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Read
EPSS
Base Score:
0.37