Summary
generated automatically from NVD dataLangchain-Chatchat through 0.3.1.3 has a missing-authentication flaw (CWE-306) in its POST /tools/call API endpoint, which runs any registered tool by name. Because the shell tool is always registered, a remote attacker can send one request naming it and execute arbitrary OS commands as the server user, which is root in the shipped Docker image. The flaw is rated CRITICAL with a CVSS v3.1 score of 9.8.
NVD 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).
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 20 oct. 2026
- Updated
- 20 oct. 2026
- Status
- Received
- Source
- disclosure@vulncheck.com
Weaknesses (CWE)
References (3)
Similar CVEs
Other vulnerabilities of type CWE-306
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