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Advisories

LMCache through 0.5.5 Missing Authentication in MP Coordinator Fleet Control API

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severity
high
date
Affecting

  • LMCache <= 0.5.5

CWE
  • CWE-306 Missing Authentication for Critical Function
CVSS
8.8
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Credit
Mingkai Yu, Jiajia Liu
Description
LMCache through 0.5.5 contains a missing authentication vulnerability in the multiprocess coordinator that allows remote unauthenticated attackers to access its HTTP fleet control API listening on all interfaces by default. Attackers can register or deregister instances via /instances, overwrite quotas via /quota endpoints, inject events via /events, and enumerate /directory/keys to disrupt caching and disclose placement metadata.

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