Which versions of quatre are malicious?

The following PyPI versions of quatre are flagged malicious: 3.0.0. Treat any of these as compromised.

How do I remediate quatre if I installed it?

Remove quatre 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.

I already installed quatre — how do I know if it already compromised me?

If quatre 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 quatre part of a known attack campaign?

Yes — quatre is associated with the RLMA-2026-02114 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 quatre across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for quatre (version 3.0.0).

Malicious package

quatrePyPI

Advisory published Jul 7, 2026Updated Jul 9, 2026

quatre is a confirmed malicious PyPI package (MAL-2026-7465) that executes malicious code on install (malicious version 3.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in quatre (PyPI)

MAL-2026-7465

Immediate action

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

pip uninstall quatre

Malicious versions

1 flagged

3.0.0

Indicators of compromise (SHA-256)

926c88dfcc5e2d08ce1ef970b4894e53a7b28ca63e5c3706647669179bd677ea

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for quatre (version 3.0.0).
If you installed it — respond
Remove quatre 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.
Did it already run?
If quatre 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. quatre on PyPI has been identified as a malicious package (version 3.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-02114

Credits

ReversingLabs · finder

Detect & block this

O3 blocks quatre-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.

Malware detection Runtime egress monitoring

Explore

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