Which versions of @tax-taxdev/tools-scripts are malicious?

The following npm versions of @tax-taxdev/tools-scripts are flagged malicious: 1.4.16. Treat any of these as compromised.

How do I remediate @tax-taxdev/tools-scripts if I installed it?

Remove @tax-taxdev/tools-scripts 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 @tax-taxdev/tools-scripts — how do I know if it already compromised me?

If @tax-taxdev/tools-scripts 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 @tax-taxdev/tools-scripts part of a known attack campaign?

Yes — @tax-taxdev/tools-scripts is associated with the RLMA-2026-01867 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 @tax-taxdev/tools-scripts across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @tax-taxdev/tools-scripts (version 1.4.16).

Malicious package

@tax-taxdev/tools-scriptsnpm

Advisory published Apr 16, 2026Updated Apr 23, 2026

@tax-taxdev/tools-scripts is a confirmed malicious npm package (MAL-2026-2717) that executes malicious code on install (malicious version 1.4.16). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @tax-taxdev/tools-scripts (npm)

MAL-2026-2717

Immediate action

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

npm uninstall @tax-taxdev/tools-scripts

What this malware does

The package @tax-taxdev/tools-scripts was found to contain malicious code.

Malicious versions

1 flagged

1.4.16

Indicators of compromise (SHA-256)

a7779ae2f06f9838a65ad95d76254e5d408eaaa2949b3f50c667444f8df0229d

37c3192cab77322b1ecf1742c4eda9aa9e5a6b495e3bf386284a15cf36365dcc

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @tax-taxdev/tools-scripts (version 1.4.16).
If you installed it — respond
Remove @tax-taxdev/tools-scripts 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 @tax-taxdev/tools-scripts 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. @tax-taxdev/tools-scripts on npm has been identified as a malicious package (version 1.4.16 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01867

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks @tax-taxdev/tools-scripts-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

All malware advisories How O3 detects malware Vulnerability database