MAL-2026-3636 Malicious code in knot-simple-formatter (RubyGems)
Malicious package
Published
MAL-2026-3636 is a malicious package: knot-simple-formatter (RubyGems). 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-2026-3636/ (Markdown: https://insights.sbomify.com/MAL-2026-3636/index.md)
- Package
- knot-simple-formatter
- Registry
- RubyGems
What is MAL-2026-3636?
MAL-2026-3636 is a malicious package in knot-simple-formatter, published on 13 May 2026.
Official description
This package is a malicious packages part of the Go BufferZoneCorp and RubyGems knot-theory clusters.
The packages in this cluster steal credentials, set up ssh access and tamper with build/workflow environmetn variables.
What should I do about MAL-2026-3636?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.
Sources
Also known as GHSA-hhcv-8cwc-9rm2.