MAL-2026-1890 Malicious code in test6789.client (NuGet)
Malicious package
Published
MAL-2026-1890 is a malicious package: test6789.client (NuGet). 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-2026-1890/ (Markdown: https://insights.sbomify.com/MAL-2026-1890/index.md)
- Package
- test6789.client
- Registry
- NuGet
What is MAL-2026-1890?
MAL-2026-1890 is a malicious package in test6789.client, published on 18 Mar 2026.
Official description
What should I do about MAL-2026-1890?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.