Which versions of nagios-xi are malicious?

The following PyPI versions of nagios-xi are flagged malicious: 19.4.0, 19.5.0. Treat any of these as compromised.

How do I remediate nagios-xi if I installed it?

Remove nagios-xi 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 network activity or persistence. Use O3 Security's dependency scanner to confirm the package and its artifacts are fully purged across your stack.

Is nagios-xi part of a known attack campaign?

Yes — nagios-xi is associated with the GENERIC-standard-pypi-install-pentest campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

Can O3 Security detect nagios-xi in my codebase?

Yes. O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, blocking nagios-xi and packages like it before any post-install script runs.

Malicious package

nagios-xiPyPI

Malicious code in nagios-xi (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-5698

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

pip uninstall nagios-xi

What this malware does

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-standard-pypi-install-pentest

Reasons (based on the campaign):

The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.
The package overrides the install command in setup.py to execute malicious code during installation.

Malicious versions

2 flagged

19.4.019.5.0

Indicators of compromise (SHA-256)

d8b27c2588accf4f2966f4630a12f9bfdc4ba621403f14237160632447152f23

Frequently asked questions

No. nagios-xi on PyPI has been identified as a malicious package (versions 19.4.0, 19.5.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GENERIC-standard-pypi-install-pentest

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter

Scan your dependencies

O3 Security blocks malicious packages like this at install time and in CI.

Supply-chain protection