# MAL-2026-11043: Malicious code in supplyhub (npm)


- **Type:** Malicious package
- **Package:** `supplyhub` (npm)
- **Published:** 20 Jul 2026

## What is MAL-2026-11043?

MAL-2026-11043 is a malicious package in supplyhub, published on 20 Jul 2026. 

### Official description

The npm package `supplyhub` is a credential / SSH-key stealer. Its `package.json` declares a `postinstall` lifecycle hook (`postinstall: node postinstall.js`) that executes automatically on `npm install`, before the package is ever imported.

`postinstall.js` uses `fs.readFileSync` to read the user's SSH private key (`~/.ssh/id_rsa`) and the process environment (`/proc/self/environ` — where CI/cloud tokens and npm tokens live), and gathers account/host identity via `os.userInfo()`; it also references `/etc/passwd`. The collected data is exfiltrated by HTTP POST to a hard-coded webhook.site dead-drop: `https://webhook.site/3c9418b3-cacd-403d-b42e-e9e4a9508fe3`.

Only version 1.0.2 is malicious: version 1.0.0 (held in the codelake corpus) is clean — the exfiltration code was introduced in the 1.0.2 release (a trust-then-poison pattern). Any workstation or CI runner that installs supplyhub@1.0.2 (directly or transitively) hands its SSH key and environment secrets to the operator.

supplyhub@1.0.1 ships a postinstall.js that runs automatically on npm install and collects installer host identifiers (os.hostname(), os.userInfo().username, process.cwd(), pid, platform, arch, node version) along with CI-related environment variables (CI, RENOVATE_VERSION), then transmits them as query parameters to a hardcoded webhook.site endpoint (https://webhook.site/3c9418b3-cacd-403d-b42e-e9e4a9508fe3) using https.get with http and execSync('curl...' || wget...) fallbacks. The package.json description self-labels this as a dependency-confusion PoC targeting the 'Travix supplyhub' name, but the tarball is published to public npm and will execute the install-time beacon against any installer that resolves this name, including unrelated users who typo or whose internal builds dependency-confuse into it.

## What should I do about MAL-2026-11043?

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-2026-11043 is a malicious package: supplyhub (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-2026-11043/ (Markdown: https://insights.sbomify.com/MAL-2026-11043/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-11043

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-11043/
Summaries are generated and may contain mistakes; the official description above is the record.