MAL-2025-191158 Malicious code in CodeInKlingon.git-worktree-menu (VSCode:https://open-vsx.org)
Malicious package
Published
MAL-2025-191158 is a malicious package: CodeInKlingon.git-worktree-menu (VSCode:https://open-vsx.org). 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-2025-191158/ (Markdown: https://insights.sbomify.com/MAL-2025-191158/index.md)
- Package
- CodeInKlingon.git-worktree-menu
- Registry
- VSCode:https://open-vsx.org
What is MAL-2025-191158?
MAL-2025-191158 is a malicious package in CodeInKlingon.git-worktree-menu, published on 19 Nov 2025.
Official description
This extension is malicious. When installed it runs an info stealer that
exfiltrates user data including credentials and cryptocurrency wallets. The
extension also provides remote access and attempts to propagate itself.
What should I do about MAL-2025-191158?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.