Which versions of py-0requests are malicious?

The following PyPI versions of py-0requests are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate py-0requests if I installed it?

py-0requests 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 py-0requests — how do I know if it already compromised me?

If py-0requests 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 py-0requests part of a known attack campaign?

Yes — py-0requests is associated with the 2026-09-0requests, IN-MAL-2026-019374 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 py-0requests across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for py-0requests (version 0.0.1).

Malicious package

py-0requestsPyPI

Advisory published Sep 3, 2026Updated Sep 4, 2026

py-0requests is a confirmed malicious PyPI package (MAL-2026-15860) that steals credentials and exfiltrates sensitive data (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in py-0requests (PyPI)

MAL-2026-15860

Immediate action

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

pip uninstall py-0requests

What this malware does

py-0requests is a homoglyph typosquat of the PyPI package requests (letter o replaced with digit 0). On import py_0requests, top-level code in the package's __init__.py scrapes os.environ for keys prefixed with SECRET, API, TOKEN, or KEY and sends the collected dictionary over a TCP socket to a host/port read from TS_HOST/TS_PORT (defaulting to 127.0.0.1:9999). The same import path spawns a Python subprocess that opens a TCP connection to the same destination, sends a SHELL marker, and holds the socket open, providing a reverse-shell handshake to whichever operator controls the destination. The package's CLI banner self-identifies as targeting requests and ships no HTTP-client API.

During import, the code exfiltrates potentially sensitive env variables. In all analyzed versions the exfiltration target was a localhost, suggesting it was just a test.

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: 2026-09-0requests

Reasons (based on the campaign):

exfiltration-env-variables
typosquatting

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

0d447dd088f92d3af66ecad461725f2df268f5f073e22a7293b3f946451933fb

bd1f4c6176eadca0e4a460d4434e9957eb9befa90d85feecd49e4baf7f3abb4b

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for py-0requests (version 0.0.1).
If you installed it — respond
py-0requests 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 py-0requests 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. py-0requests on PyPI has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-09-0requestsIN-MAL-2026-019374

References

Credits

Amazon Inspector · finder
Kamil Mańkowski (kam193) · analyst

Detect & block this

O3 blocks py-0requests-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