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Malicious package

requestsdevPyPI

Advisory published Updated

requestsdev is a confirmed malicious PyPI package (MAL-2025-5129) that executes malicious code on install (malicious version 1.3.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in requestsdev (PyPI)

MAL-2025-5129
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall requestsdev

Malicious versions

1 flagged
1.3.6

Indicators of compromise (SHA-256)

202e5d6949a86e59a699c4ed720d0a38f15d0dad8a03ffbc2c9f3cab679d5292
9d867f0043c694a1dbc9de421a4b2e9d3a0f3a4dab633e7d96b754cba23a453c

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for requestsdev (version 1.3.6).

  2. If you installed it — respond

    Remove requestsdev 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 requestsdev 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. requestsdev on PyPI has been identified as a malicious package (version 1.3.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-03026RLUA-2025-06586

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks requestsdev-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.

Explore

requestsdev (PyPI) malicious package — MAL-2025-5129 | O3 Security