Is CVE-2026-30617 actively exploited?

No active exploitation of CVE-2026-30617 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-30617 be exploited remotely?

Yes. CVE-2026-30617 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-30617?

CVE-2026-30617 has a CVSS score of 8.6 (HIGH).

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HIGH

CVE-2026-30617

CWE-77Published: April 15, 2026· Updated: Apr 17, 2026

8.6

CVSS v3.1

EPSS:0.14%probability of exploitation in 30 daysPercentile:34.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-30617 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.6.