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Malicious package

@common-stack/generate-pluginnpm

Malicious code in @common-stack/generate-plugin (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-5546
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @common-stack/generate-plugin

What this malware does

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

15 flagged
9.0.2-alpha.219.0.2-alpha.229.0.2-alpha.239.0.2-alpha.249.0.4-alpha.09.0.4-alpha.19.0.5-alpha.09.0.5-alpha.19.0.5-alpha.29.0.5-alpha.39.0.5-alpha.49.0.5-alpha.59.0.6-alpha.09.0.6-alpha.110.0.1-alpha.0

Indicators of compromise (SHA-256)

b54a3dc296ec3f6dbded973e24aa9794b498cc1e8305fc3d1f88a4fdff7335df
417076948c994de23c45847e28f526663a061e0b0df59017813f7fcc5ca74fb0

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @common-stack/generate-plugin (15 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @common-stack/generate-plugin across your stack and pipelines.

  2. If you installed it — respond

    Remove @common-stack/generate-plugin 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 @common-stack/generate-plugin was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks @common-stack/generate-plugin before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. @common-stack/generate-plugin on npm has been identified as a malicious package (versions 9.0.2-alpha.21, 9.0.2-alpha.22, 9.0.2-alpha.23, 9.0.2-alpha.24, 9.0.4-alpha.0, 9.0.4-alpha.1, 9.0.5-alpha.0, 9.0.5-alpha.1, and 7 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-6p55-6hvr-3xmg

References

Detect & block this

O3 blocks @common-stack/generate-plugin-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.

@common-stack/generate-plugin (npm) malicious package — MAL-2026-5546 | O3 Security