{"cve":"CVE-2026-105192","nvd":{"published":"2026-10-07T10:17:32.647","modified":"2026-10-07T18:17:15.427","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-306","CWE-502"],"references":["https://github.com/LMCache/LMCache","https://github.com/LMCache/LMCache/blob/v0.3.9/lmcache/v1/multiprocess/custom_types.py","https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/platform/base/ipc_wrapper.py","https://pypi.org/project/lmcache/"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:01.639778232+00:00"},"epss":{"cve":"CVE-2026-105192","score":0.00772,"percentile":0.55421,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-w5f2-9q9c-ff4h","url":"https://osv.dev/vulnerability/GHSA-w5f2-9q9c-ff4h","summary":"LMCache: Remote code execution via unsafe deserialization in multiprocess mode transport","modified":"2026-10-16T20:15:03.732682699Z","packages":[{"ecosystem":"PyPI","name":"lmcache","purl":"pkg:pypi/lmcache","ranges":[">=0.3.9 <0.5.6"],"fixed":["0.5.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}