CVE-2026-104433
Mooncake before 0.3.12 Out-of-Bounds Read via P2P Handshake readString
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.
INFO
Published Date :
Oct. 2, 2026, 11:28 p.m.
Last Modified :
Oct. 2, 2026, 11:28 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update the Mooncake transfer engine to version 0.3.12 or later.
- Apply vendor patches if available.
- Restrict access to the handshake port.
- Monitor network traffic for suspicious handshake frames.
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