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Malicious package

libxmljs2qaznpm

Advisory published Updated

libxmljs2qaz is a confirmed malicious npm package (MAL-2026-1780) that executes malicious code on install (malicious version 0.30.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in libxmljs2qaz (npm)

MAL-2026-1780
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall libxmljs2qaz

What this malware does

The package libxmljs2qaz was found to contain malicious code.

Malicious versions

1 flagged
0.30.2

Indicators of compromise (SHA-256)

534a955de690d55e564ad3c74e1a773f14e637388646c1fa1246b53a75356403
4f64f090b82381f264f574df9a6c965210764f25bcc6e57a1a0811cbca70fc20

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for libxmljs2qaz (version 0.30.2).

  2. If you installed it — respond

    Remove libxmljs2qaz 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 libxmljs2qaz 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. libxmljs2qaz on npm has been identified as a malicious package (version 0.30.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01413

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks libxmljs2qaz-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

libxmljs2qaz (npm) malicious package — MAL-2026-1780 | O3 Security