CVE-2026-95660: Moonshot AI Kimi Code MCP Configuration Loader config-loader.ts os command injection
A security flaw has been discovered in Moonshot AI Kimi Code up to 0.31.0. The affected element is an unknown function of the file agent-core-v2/src/agent/mcp/config-loader.ts of the component MCP Configuration Loader. The manipulation results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.31.1 is sufficient to fix this issue. It is recommended to upgrade the affected component. Beyond the trust prompt, the fix resolves fd/stty binaries to absolute paths specifically "so untrusted workspaces cannot plant bare-name executables before confirmation," fixing a secondary $PATH path-planting vector alongside the primary untrusted-.mcp.json auto-spawn.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Moonshot AI Kimi Codeto a version that resolves this vulnerability.Fixed in 0.31.1
Event History
Frequently Asked Questions
Which deployments are exposed to this issue?
Moonshot AI Kimi Code versions up to 0.31.0 are affected. The vulnerable functionality is the MCP Configuration Loader in agent-core-v2/src/agent/mcp/config-loader.ts.
What must an attacker provide or control to exploit it?
Exploitation involves an untrusted .mcp.json configuration that can trigger automatic process spawning. The issue can be launched remotely and requires user interaction, as reflected by the UI:R vector.
Are untrusted workspaces relevant to exploitation?
Yes. The advisory specifically notes that untrusted workspaces could plant bare-name fd or stty executables before confirmation through a $PATH path-planting vector, in addition to the untrusted-.mcp.json auto-spawn issue.
What is the recommended remediation?
Upgrade Moonshot AI Kimi Code to version 0.31.1. The fix addresses the primary untrusted-.mcp.json auto-spawn behavior and resolves fd and stty to absolute paths to prevent the noted path-planting vector.