Which versions of react-performance-suite are malicious?

The following npm versions of react-performance-suite are flagged malicious: 2.0.0, 2.0.1. Treat any of these as compromised.

How do I remediate react-performance-suite if I installed it?

Remove react-performance-suite 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-performance-suite — how do I know if it already compromised me?

If react-performance-suite 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-performance-suite part of a known attack campaign?

Yes — react-performance-suite is associated with the RLMA-2026-01533, RLUA-2026-02031 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-performance-suite across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for react-performance-suite (2 malicious versions).

Malicious package

react-performance-suitenpm

Advisory published Mar 18, 2026Updated Apr 16, 2026

react-performance-suite is a confirmed malicious npm package (MAL-2026-1836) that executes malicious code on install (malicious versions 2.0.0, 2.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in react-performance-suite (npm)

MAL-2026-1836

Immediate action

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

npm uninstall react-performance-suite

What this malware does

The package react-performance-suite was found to contain malicious code.

Malicious versions

2 flagged

2.0.02.0.1

Indicators of compromise (SHA-256)

a4da620335e14f78a181c7e9a70b30d30487cf8ef5eb6796c44393a0996d4d3c

4e8467a722c92d3c846a99ea30e0b092dd93fba781c34f93dae9b05582d4475e

3dac780d6971f862a06876656cf8f0192c8ca48dd6a463049535c42b41f4661e

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for react-performance-suite (2 malicious versions).
If you installed it — respond
Remove react-performance-suite 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-performance-suite 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-performance-suite on npm has been identified as a malicious package (versions 2.0.0, 2.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01533RLUA-2026-02031

References

reversinglabs.com

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks react-performance-suite-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