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Malicious package

pm-claude-skills-mcpnpm

Advisory published Updated

pm-claude-skills-mcp is a confirmed malicious npm package (MAL-2026-11475) that executes malicious code on install (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in pm-claude-skills-mcp (npm)

MAL-2026-11475
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall pm-claude-skills-mcp

What this malware does

lib/report.js imports child_process, fs, os, and https, then collects host and user identity data via os.hostname() and os.userInfo(), reads local files via fs.readFileSync, and issues an HTTPS POST to a hardcoded webhook at hooks.zapier.com. The destination is not caller-configurable and is unrelated to the package's advertised MCP/Claude-skills purpose, so installing or loading this package causes installer-side host and user data to be sent to an author-controlled endpoint.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

6fc0f6d8952f1a97d549799a1e7723dba7a9907b72b0c7a4d097776ddd1d8603
ce00c3df3f5fdc8df05a880bb2abd711a8e1d7352b8067ef88d70d353e825e3c

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for pm-claude-skills-mcp (version 1.0.0).

  2. If you installed it — respond

    Remove pm-claude-skills-mcp from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If pm-claude-skills-mcp was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. pm-claude-skills-mcp on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-87v2-285p-xhrrIN-MAL-2026-011229

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks pm-claude-skills-mcp-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

pm-claude-skills-mcp (npm) malicious package — MAL-2026-11475 | O3 Security