Which versions of react-flex-tools are malicious?

The following npm versions of react-flex-tools are flagged malicious: 2.0.1. Treat any of these as compromised.

How do I remediate react-flex-tools if I installed it?

Remove react-flex-tools 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 react-flex-tools — how do I know if it already compromised me?

If react-flex-tools 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 react-flex-tools part of a known attack campaign?

Yes — react-flex-tools is associated with the RLMA-2025-06457, RLUA-2026-01527 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 react-flex-tools across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for react-flex-tools (version 2.0.1).

Malicious package

react-flex-toolsnpm

Advisory published Dec 23, 2025Updated Mar 19, 2026

react-flex-tools is a confirmed malicious npm package (MAL-2025-192855) that executes malicious code on install (malicious version 2.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in react-flex-tools (npm)

MAL-2025-192855

Immediate action

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

npm uninstall react-flex-tools

What this malware does

The package react-flex-tools was found to contain malicious code.

Malicious versions

1 flagged

2.0.1

Indicators of compromise (SHA-256)

2e340363a8999fa89f8f3ad5ea5318c4d32edd746aa2d80f4f89da2b1b69fd94

1ab5b4a0a39a8b9ccc5dd27ea7207f3006128207203ee8ceb99dbef4be0ec9d3

bc0a8579ece68eb524c896cf4694565f937a05bdb5a8c9a9927dc526accbc625

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for react-flex-tools (version 2.0.1).
If you installed it — respond
Remove react-flex-tools 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 react-flex-tools 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. react-flex-tools on npm has been identified as a malicious package (version 2.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06457RLUA-2026-01527

References

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks react-flex-tools-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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