CVE-2026-105192 (GCVE-0-2026-105192)

Vulnerability from cvelistv5 – Published: 2026-10-07 09:40 – Updated: 2026-10-07 17:48
VLAI
Title
LMCache Unauthenticated RCE in multiprocess mode via pickle deserialization
Summary
LMCache multiprocess mode, also called distributed mode, opens an unauthenticated ZeroMQ ROUTER so worker processes can register and share KV cache blocks. Messages on that socket are msgpack. Extension code 1 is passed to DeviceIPCWrapper.Deserialize, which calls pickle.loads, while the server is still decoding request arguments and before the handler runs. A single unauthenticated ZMQ DEALER message to the transport port (default 5555) therefore executes code as the user the LMCache process runs as. Official container images run that process as root. The transport binds to localhost unless the operator sets a routable address with --host, which is how multi-node deployments let peers connect.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 17:47 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version CPE status
LMCache LMCache Affected: 0.3.9 , ≤ * (python)
guessed Create a notification for this product.
Credits
Yuval Moravchick JFrog Security Research
Show details on NVD website
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