CVE-2026-30617

EUVD-2026-22941 HIGH

Command Injection (CWE-77)

2026-04-15 mitre

Command Injection RCE

8.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.6 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

Lifecycle Timeline

CVSS changed

Apr 15, 2026 - 19:22 NVD

8.6 (None) 8.6 (HIGH)

EUVD ID Assigned

Apr 15, 2026 - 15:30 euvd

EUVD-2026-22941

CVE Published

Apr 15, 2026 - 00:00 nvd

HIGH 8.6

DescriptionCVE.org

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.