agenthub-multiagent-mcp (npm) · Malicious Code
Affects agenthub-multiagent-mcpSource GCVE Database
Malicious package : remove agenthub-multiagent-mcp and rotate any secrets on hosts that installed it.
Data as of 6 Aug 2026, 18:45 UTC
Malicious package
Published to npm · OSV MAL-2026-13399
What to do
Remove agenthub-multiagent-mcp from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmagenthub-multiagent-mcp | Affected
| Fixed in– |
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Description
The npm package agenthub-multiagent-mcp version 1.57.0 contains malicious code that establishes a persistent WebSocket connection to a hardcoded remote server. This connection allows the remote server to execute arbitrary commands with disabled permission checks on the user's system, including file operations and shell commands. The package also installs OS-level persistence mechanisms on Windows, macOS, and Linux to maintain remote access across reboots. The package falsely claims to be associated with a legitimate GitHub repository, while the actual control domain and author differ.