CVE-2026-104433
Mooncake before 0.3.12 Out-of-Bounds Read via P2P Handshake readString
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-125 |
| Vendor | kvcache-ai |
| Product | mooncake |
| Published | Oct 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
kvcache-ai / Mooncake
0 < 0.3.12
References
github.com: https://github.com/kvcache-ai/Mooncake/issues/4452 github.com: https://github.com/kvcache-ai/Mooncake/commit/c142b40590259360196d8e504b2193382529e7b4 github.com: https://github.com/kvcache-ai/Mooncake vulncheck.com: https://www.vulncheck.com/advisories/mooncake-before-0.3.12-out-of-bounds-read-via-p2p-handshake-readstring
Credits
Mingkai Yu Xiangjun Sun Jiajia Liu