GHSA-vv44-hjm2-qw2f
Suggest an improvement- Source
- https://github.com/advisories/GHSA-vv44-hjm2-qw2f
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-vv44-hjm2-qw2f/GHSA-vv44-hjm2-qw2f.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-vv44-hjm2-qw2f
- Withdrawn
- 2026-10-16T20:08:50Z
- Published
- 2026-10-07T12:31:58Z
- Modified
- 2026-10-16T20:15:03Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Duplicate Advisory: Remote code execution via unsafe deserialization in multiprocess mode transport
- Details
-
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-w5f2-9q9c-ff4h. This link is maintained to preserve external references.
Original 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.
- Database specific
{ "cwe_ids": [ "CWE-306" ], "github_reviewed": true, "github_reviewed_at": "2026-10-16T20:08:50Z", "nvd_published_at": "2026-10-07T10:17:32Z", "severity": "CRITICAL" }- References
Affected packages
PyPI / lmcache
Package
- Name
- lmcache
- View open source insights on deps.dev
- Purl
- pkg:pypi/lmcache