Which versions of pathlib-v2-utility are malicious?

The following PyPI versions of pathlib-v2-utility are flagged malicious: 1.0.4, 1.0.5. Treat any of these as compromised.

How do I remediate pathlib-v2-utility if I installed it?

pathlib-v2-utility is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed pathlib-v2-utility — how do I know if it already compromised me?

If pathlib-v2-utility 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.

Is pathlib-v2-utility part of a known attack campaign?

Yes — pathlib-v2-utility is associated with the 2026-02-pathfiles campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find pathlib-v2-utility across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for pathlib-v2-utility (2 malicious versions).

Malicious package

pathlib-v2-utilityPyPI

Advisory published Feb 3, 2026Updated Feb 3, 2026

pathlib-v2-utility is a confirmed malicious PyPI package (MAL-2026-697) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.4, 1.0.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in pathlib-v2-utility (PyPI)

MAL-2026-697

Immediate action

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

pip uninstall pathlib-v2-utility

What this malware does

Disguised as file system manipulation library, the package hides an obfuscated code to communicate with a Telegram channel. Though the usage is not known at the moment, the package is clearly created for data exfiltration

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-02-pathfiles

Reasons (based on the campaign):

obfuscation
action-hidden-in-lib-usage

Malicious versions

2 flagged

1.0.41.0.5

Indicators of compromise (SHA-256)

c8dc8b60e188fb941aeb9f5b6207d2c0fcab27719a142558498bf72d1602d992

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for pathlib-v2-utility (2 malicious versions).
If you installed it — respond
pathlib-v2-utility is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If pathlib-v2-utility 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. pathlib-v2-utility on PyPI has been identified as a malicious package (versions 1.0.4, 1.0.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-02-pathfiles

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · analyst

Detect & block this

O3 blocks pathlib-v2-utility-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database