Which versions of libxmlpupupu are malicious?

Every published version of libxmlpupupu on npm is considered malicious. Remove the package entirely.

How do I remediate libxmlpupupu if I installed it?

Remove libxmlpupupu 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 libxmlpupupu — how do I know if it already compromised me?

If libxmlpupupu 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.

How do I find libxmlpupupu across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for libxmlpupupu (all published versions).

Malicious package

libxmlpupupunpm

Advisory published Dec 11, 2025Updated Dec 11, 2025

libxmlpupupu is a confirmed malicious npm package (MAL-2025-192462) that executes malicious code on install. Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in libxmlpupupu (npm)

MAL-2025-192462

Immediate action

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

npm uninstall libxmlpupupu

What this malware does

The package libxmlpupupu was found to contain malicious code.

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Indicators of compromise (SHA-256)

6137dbf72252f12fd82d8b02ae9d8270288badd33f0e5324b78e1be1b349180a

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for libxmlpupupu (all published versions).
If you installed it — respond
Remove libxmlpupupu 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 libxmlpupupu 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. libxmlpupupu on npm has been identified as a malicious package (all published versions flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks libxmlpupupu-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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