# MAL-2026-6697: Malicious code in @sudoughnym/enviro-demo (npm)


- **Type:** Malicious package
- **Package:** `@sudoughnym/enviro-demo` (npm)
- **Published:** 30 Jun 2026
- **Also known as:** GHSA-77gf-97j3-jv6p

## What is MAL-2026-6697?

MAL-2026-6697 is a malicious package in @sudoughnym/enviro-demo, published on 30 Jun 2026. 

### Official description

@sudoughnym/enviro-demo@99.99.99 ships preinstall.js and postinstall.js lifecycle scripts that run automatically on `npm install`. Both scripts collect host identifiers and environment metadata — os.hostname(), process.cwd(), pid, node version, platform, process.env.USER, the first ten environment variable names, and the total env count — and POST them as JSON to https://webhook.site/f83b073c-a04a-4ac5-8930-507051bd22f7, a third-party webhook capture service not associated with the package's stated publisher. The package version (99.99.99) and its own description identify it as a dependency-confusion proof-of-concept targeting an internal `enviro` package name; the inflated semver is intended to outrank private-registry versions so internal build systems resolve to this public package. Installer harm: any build or developer machine that resolves to this version leaks host identity and environment-variable layout (which can include secret-bearing variable names) to an attacker-controlled endpoint on every install.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

## What should I do about MAL-2026-6697?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-6697 is a malicious package: @sudoughnym/enviro-demo (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-2026-6697/ (Markdown: https://insights.sbomify.com/MAL-2026-6697/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-6697

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-6697/
Summaries are generated and may contain mistakes; the official description above is the record.