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Malicious package

fenics-dolfinxPyPI

fenics-dolfinx is a confirmed malicious PyPI package (MAL-2025-2963) that executes malicious code on install (malicious version 0.0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in fenics-dolfinx (PyPI)

MAL-2025-2963
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall fenics-dolfinx

Malicious versions

1 flagged
0.0.0.1

Indicators of compromise (SHA-256)

8a8bc5694f3927443befeab3962425bc1804b7b4200faa00751bf47dbefac85c

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for fenics-dolfinx (version 0.0.0.1).

  2. If you installed it — respond

    Remove fenics-dolfinx 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 fenics-dolfinx 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. fenics-dolfinx on PyPI has been identified as a malicious package (version 0.0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-01961

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks fenics-dolfinx-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

fenics-dolfinx (PyPI) malicious package — MAL-2025-2963 | O3 Security