Which versions of epic-webpack-utils are malicious?

The following npm versions of epic-webpack-utils are flagged malicious: 0.0.1-security, 1.0.0. Treat any of these as compromised.

How do I remediate epic-webpack-utils if I installed it?

Remove epic-webpack-utils 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 epic-webpack-utils — how do I know if it already compromised me?

If epic-webpack-utils 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.

How do I find epic-webpack-utils across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for epic-webpack-utils (2 malicious versions).

Malicious package

epic-webpack-utilsnpm

Advisory published Oct 30, 2025Updated Oct 1, 2026

epic-webpack-utils is a confirmed malicious npm package (MAL-2025-49222) that executes malicious code on install (malicious versions 0.0.1-security, 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in epic-webpack-utils (npm)

MAL-2025-49222

Immediate action

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

npm uninstall epic-webpack-utils

What this malware does

The package epic-webpack-utils was found to contain malicious code.

Malicious versions

2 flagged

0.0.1-security1.0.0

Indicators of compromise (SHA-256)

3ff282c7ec2d975de64a2b6ff7db19e8cb5b4ab31b1b39d857b7bb9d2f07c8a6

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for epic-webpack-utils (2 malicious versions).
If you installed it — respond
Remove epic-webpack-utils 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 epic-webpack-utils 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. epic-webpack-utils on npm has been identified as a malicious package (versions 0.0.1-security, 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks epic-webpack-utils-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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