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Unpatched critical flaw allows remote code execution in LMCache

Original: 🤖 Unpatched critical RCE in LMCache, the LLM KV-cache server used with vLLM: in multiprocess mode an unauthenticated att

Security researchers have disclosed an unpatched critical remote code execution vulnerability in LMCache, the KV-cache server used alongside the vLLM inference framework. In multiprocess mode, an unauthenticated attacker can execute arbitrary code over ZeroMQ. No fixed version is available yet, leaving deployments exposed until a patch or mitigation is released.

Why now: The flaw is critical, actively discussed by the security community, and remains unpatched.

LMCachevLLMZeroMQThe Hacker News

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Evidence

• 🤖 Unpatched critical RCE in LMCache, the LLM KV-cache server used with vLLM: in multiprocess mode an unauthenticated attacker can run code over ZeroMQ. No fixed version available yet. 🔗 https:// thehackernews.com/2026/10/unpa tched-critical-lmcache-flaw-lets.html # CyberSec #… · cloud@infosec.exchange · 2

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