MAL-2026-3181 Malicious code in period-newline (npm)
Malicious package
Published
MAL-2026-3181 is a malicious package: period-newline (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-3181/ (Markdown: https://insights.sbomify.com/MAL-2026-3181/index.md)
- Package
- period-newline
- Registry
- npm
What is MAL-2026-3181?
MAL-2026-3181 is a malicious package in period-newline, published on 29 Apr 2026.
Official description
Malicious npm package published by threat actor "ryanmccollum1" impersonating a benign text-formatting utility. Part of the same supply chain attack campaign as redeem-onchain-sdk, which collects SSH keys, AWS credentials, .npmrc tokens, Docker auth, Chrome saved logins, .env files, and git history, exfiltrating over a raw TCP socket to an AWS-hosted C2. Published by threat actor "ryanmccollum1" as part of the same campaign as redeem-onchain-sdk.
The package period-newline was found to contain malicious code.
What should I do about MAL-2026-3181?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.