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Advisories

Langchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call Endpoint

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Severity
critical
Date
Affecting

  • Langchain-Chatchat <= 0.3.1.3

CWE
  • CWE-306 Missing Authentication for Critical Function
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Noy Pearl, Michael Sromin, Ophir Dror
Description
Langchain-Chatchat through 0.3.1.3 exposes a POST /tools/call API endpoint that invokes any registered tool by name without authentication, leaving the always-registered shell tool callable. Remote attackers can send a single request naming the shell tool to execute arbitrary OS commands as the server user (root in the shipped Docker image).

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