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Malicious package

medusa-plugin-product-reviews-kvynpm

Advisory published Updated

medusa-plugin-product-reviews-kvy is a confirmed malicious npm package (MAL-2025-190776) that steals credentials and exfiltrates sensitive data (malicious version 0.0.4). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in medusa-plugin-product-reviews-kvy (npm)

MAL-2025-190776
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall medusa-plugin-product-reviews-kvy

What this malware does

The package medusa-plugin-product-reviews-kvy was found to contain malicious code.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

This package was compromised by the Sha1-Hulud: The Second Coming NPM worm. The malicious payload steals tokens and credentials and publishes them to GitHub. The worm will propogate itself to NPM packages the user owns and establish persistence is a GitHub action. The package may also destroy the user's home directory.

Malicious versions

1 flagged
0.0.4

Indicators of compromise (SHA-256)

6c10063ee32766cbd55d175a1bc72e6de45177ae5cab780443c988378294e9b1
0d400830b8f3bd9546ee8f7f68bfb8028db23280c0f6a1c4f494e4eebf65df6f
2fd7d1c5e423475f9307cabfc9f44b4f1c6dd2f34193201b77f2d597b8ec2eea

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for medusa-plugin-product-reviews-kvy (version 0.0.4).

  2. If you installed it — respond

    medusa-plugin-product-reviews-kvy is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If medusa-plugin-product-reviews-kvy 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. medusa-plugin-product-reviews-kvy on npm has been identified as a malicious package (version 0.0.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-878f-rjv4-9vvx

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks medusa-plugin-product-reviews-kvy-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
medusa-plugin-product-reviews-kvy (npm) malicious package — MAL-2025-190776 | O3 Security