MAL-2026-14060 Malicious code in fastly-vcl-language-client (npm)
Malicious package
Published
MAL-2026-14060 is a malicious package: fastly-vcl-language-client (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-2026-14060/ (Markdown: https://insights.sbomify.com/MAL-2026-14060/index.md)
- Package
- fastly-vcl-language-client
- Registry
- npm
What is MAL-2026-14060?
MAL-2026-14060 is a malicious package in fastly-vcl-language-client, published on 15 Aug 2026.
Official description
The package declares scripts.preinstall = 'node vishu.js', which runs unconditionally on npm install. vishu.js fetches the installer's public IP via api.ipify.org, reads os.hostname(), and collects CI runner environment variables (CI, GITHUB_ACTIONS, GITHUB_WORKFLOW, GITHUB_RUN_ID, GITHUB_RUN_NUMBER, GITHUB_RUN_ATTEMPT) from process.env, then POSTs/GETs the collected data to a hardcoded https://webhook.site/3c201be4-c16d-4e0c-bf9c-ccc50faa8574 endpoint. It additionally performs a DNS lookup of ping-<hostname>.<oast-collaborator-domain> to exfiltrate the hostname via DNS out-of-band. The package ships no real functionality — its metadata describes it as a 'dependency test utility package' and its name resembles an internal Fastly tool, consistent with a dependency-confusion / recon probe targeting build systems that resolve internal package names against public npm.
What should I do about MAL-2026-14060?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.