What does the request-cache-py malware do?

During import, package exfiltrates browsers data, SSH keys and other credential files, env variables and other sensitive data. Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-06-request-cache-py Reasons (based on the campaign): - infostealer - exfiltration-env-variables - exfiltration-ssh-keys - impersonation - A Telegram webhook is used to send collected data. - exfiltration-browser-data - The package contains code to detect if it is running in a sandbox environment. - exfiltration-credentials - The malicious code is intentionally included in a dependency of the package

Which versions of request-cache-py are malicious?

The following PyPI versions of request-cache-py are flagged malicious: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.1.0. Treat any of these as compromised.

How do I remediate request-cache-py if I installed it?

Remove request-cache-py 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 request-cache-py part of a known attack campaign?

Yes — request-cache-py is associated with the 2026-06-request-cache-py 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 request-cache-py 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 request-cache-py and packages like it before any post-install script runs.

Malicious package

request-cache-pyPyPI

Malicious code in request-cache-py (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-6245

Immediate action

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

pip uninstall request-cache-py

What this malware does

During import, package exfiltrates browsers data, SSH keys and other credential files, env variables and other sensitive data.

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

Campaign: 2026-06-request-cache-py

Reasons (based on the campaign):

infostealer
exfiltration-env-variables
exfiltration-ssh-keys
impersonation
A Telegram webhook is used to send collected data.
exfiltration-browser-data
The package contains code to detect if it is running in a sandbox environment.
exfiltration-credentials
The malicious code is intentionally included in a dependency of the package

Malicious versions

11 flagged

1.0.01.0.11.0.21.0.31.0.41.0.51.0.61.0.71.0.81.0.91.1.0

Indicators of compromise (SHA-256)

d027c4b6379310432f96b48dc78c73ddf1346052c5ab16ea6ed4fe3fc0754d08

Frequently asked questions

No. request-cache-py on PyPI has been identified as a malicious package (versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, and 3 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-06-request-cache-py

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