critical · CVSS v3 9.8 · CVSS v4 9.3 · EPSS 0.00522

CVE-2026-75128

Langchain-Chatchat through 0.3.1.3 exposes a POST /tools/call API endpoint that invokes any registered tool by name with…

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).

Scores

Severity
critical
CVSS v2
10
CVSS v3
9.8
CVSS v4
9.3
EPSS
0.00522

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