Which versions of bootstrap-setflexcolor are malicious?

The following npm versions of bootstrap-setflexcolor are flagged malicious: 1.9.15. Treat any of these as compromised.

How do I remediate bootstrap-setflexcolor if I installed it?

Remove bootstrap-setflexcolor 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 bootstrap-setflexcolor — how do I know if it already compromised me?

If bootstrap-setflexcolor 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 bootstrap-setflexcolor part of a known attack campaign?

Yes — bootstrap-setflexcolor is associated with the RLMA-2025-06073, RLUA-2026-01131 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 bootstrap-setflexcolor across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for bootstrap-setflexcolor (version 1.9.15).

Malicious package

bootstrap-setflexcolornpm

Advisory published Dec 23, 2025Updated Mar 19, 2026

bootstrap-setflexcolor is a confirmed malicious npm package (MAL-2025-192718) that executes malicious code on install (malicious version 1.9.15). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bootstrap-setflexcolor (npm)

MAL-2025-192718

Immediate action

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

npm uninstall bootstrap-setflexcolor

What this malware does

The package bootstrap-setflexcolor was found to contain malicious code.

Malicious versions

1 flagged

1.9.15

Indicators of compromise (SHA-256)

48bf9d56dba6ed5bcbef19aca645b5c81bb2458545bc4c3497783b0a26372b9c

90557c8cf061fb243537b42df1c27af4fc410d5a3bbeb6df2346720058fa9d4f

47d421554076c94232041969c174acea991aa089a872b74f86e37a5a2e2517c8

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for bootstrap-setflexcolor (version 1.9.15).
If you installed it — respond
Remove bootstrap-setflexcolor 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 bootstrap-setflexcolor 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. bootstrap-setflexcolor on npm has been identified as a malicious package (version 1.9.15 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06073RLUA-2026-01131

References

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks bootstrap-setflexcolor-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