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Malicious package

nuget-task-commonnpm

Malicious code in nuget-task-common (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-1059
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall nuget-task-common

What this malware does

The package nuget-task-common was found to contain malicious code.

The OpenSSF Package Analysis project identified 'nuget-task-common' @ 1.0.3 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

Malicious versions

2 flagged
1.0.31.0.4

Indicators of compromise (SHA-256)

47e1cdbf493398670fbd0bb47c363f20bff267ebce3288bc774f67428e5a7c8f
f8abcfbda5491a3ed3bfe9e9615dea7e15baa99176b54cca5944657bade46c31
711e93cd10681dc29d8c8eea7b459d982383f7b78d0c5fdc73e9398aff953a90

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 nuget-task-common (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging nuget-task-common across your stack and pipelines.

  2. If you installed it — respond

    Remove nuget-task-common 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 nuget-task-common 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 nuget-task-common 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. nuget-task-common on npm has been identified as a malicious package (versions 1.0.3, 1.0.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

  • Amazon Inspector · finder
  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks nuget-task-common-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.

nuget-task-common (npm) malicious package — MAL-2026-1059 | O3 Security