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GHSA-w5f2-9q9c-ff4h: LMCache: Remote code execution via unsafe deserialization in multiprocess mode transport

October 16, 2026

LMCache is vulnerable to Unauthenticated Remote Code Execution via Pickle Deserialization on the Multiprocess ZMQ Transport

References

  • blog.lmcache.ai/en/2026/10/13/an-update-on-cve-2026-105192
  • github.com/LMCache/LMCache/blob/v0.3.9/lmcache/v1/multiprocess/custom_types.py
  • github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/platform/base/ipc_wrapper.py
  • github.com/LMCache/LMCache/commit/160b6dec469edb765efd1fad42aca5a438b08bb5
  • github.com/LMCache/LMCache/commit/62f74c417dfe1ba56761733fd25dc8209a192f20
  • github.com/LMCache/LMCache/commit/767c7e367bbdc357c445cf7bd2ed259cff8d5865
  • github.com/LMCache/LMCache/pull/5644
  • github.com/LMCache/LMCache/pull/5684
  • github.com/LMCache/LMCache/pull/5685
  • github.com/LMCache/LMCache/security/advisories/GHSA-w5f2-9q9c-ff4h
  • github.com/advisories/GHSA-w5f2-9q9c-ff4h
  • nvd.nist.gov/vuln/detail/CVE-2026-105192
  • research.jfrog.com/vulnerabilities/lmcache-is-vulnerable-to-unauthenticated-remote-code-execution-via-pickle-deserialization-on-the-multiprocess-zmq-transport-cve-2026-105192-jfsa-2026-001694382

Code Behaviors & Features

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Affected versions

All versions starting from 0.3.9 before 0.5.6

Fixed versions

  • 0.5.6

Solution

Upgrade to version 0.5.6 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-306: Missing Authentication for Critical Function

Source file

pypi/lmcache/GHSA-w5f2-9q9c-ff4h.yml

Spotted a mistake? Edit the file on GitLab.

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