CVE-2026-30617 Details
Description
LangChain-ChatChat 0.3.1 contains a remote code execution vulnerability in its MCP STDIO server configuration and execution handling. A remote attacker can access the publicly exposed MCP management interface and configure an MCP STDIO server with attacker-controlled commands and arguments. When the MCP server is started and MCP is enabled for agent execution, subsequent agent activity triggers execution of arbitrary commands on the server. Successful exploitation allows arbitrary command execution within the context of the LangChain-ChatChat service.
A remote code execution vulnerability exists in LangChain-ChatChat version 0.3.1, specifically within its MCP STDIO server configuration and execution management. The vulnerability allows remote attackers to access the publicly exposed MCP management interface and configure an MCP STDIO server with commands and arguments controlled by the attacker. Once the MCP server is activated and enabled for agent execution, it executes the injected commands on the server. This exploitation leads to arbitrary command execution within the context of the LangChain-ChatChat service.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 15, 2026CISA-ADP
Assessed Apr 15, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem/ | [email protected] | BundleRemedyTechnical Analysis |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| LangChain-ChatChat | All versions |
CPE
Remediation
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| LangFlow | All versions |
CPE
Remediation
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| GPT Researcher | All versions |
CPE
Remediation
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| LiteLLM | All versions |
CPE
Remediation
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| Agent Zero | All versions |
CPE
Remediation
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| LangBot | All versions |
CPE
Remediation
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| Fay Digital Human Framework | All versions |
CPE
Remediation
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| Bisheng | All versions |
CPE
Remediation
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| Jaaz | All versions |
CPE
Remediation
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| Windsurf | All versions |
CPE
Remediation
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| Upsonic | All versions |
CPE
Remediation
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| Flowise | All versions |
CPE
Remediation
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| DocsGPT | All versions |
CPE
Remediation
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| LettaAI | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 15, 2026 | CVE Modified | CISA-ADP |
| Apr 15, 2026 | New CVE Received | [email protected] |