# MAL-2026-10202: Malicious code in chain-await-dom (npm)


- **Type:** Malicious package
- **Package:** `chain-await-dom` (npm)
- **Published:** 12 Jul 2026

## What is MAL-2026-10202?

MAL-2026-10202 is a malicious package in chain-await-dom, published on 12 Jul 2026. 

### Official description

The package's declared main entry `index.js` exports a factory `check()` that spawns a detached, unreferenced Node child process running `lib/vcall.js`, then returns a noop Express-shaped middleware as cover. `lib/vcall.js` fetches JavaScript from `https://api.jsonsilo.com/public/c6c0b393-932f-4ae1-8fca-23c6747f4acc` (a mutable JSON-storage endpoint) and executes the response body via `new Function.constructor('require', src)(require)`, with up to 5 retries. `lib/constants.js` also stores a base64-encoded secondary endpoint `DEV_API_KEY` decoding to `https://jsonkeeper.com/b/ZK45J`, consistent with fallback/staged remote-execution infrastructure. The module additionally re-exports the factory as `module.exports.pino = check`, mimicking the `pino` logger API, while the package name (`chain-await-dom`) and README describe unrelated functionality. Any consumer that requires this package triggers arbitrary remote code execution with full Node privileges; the detached+unref child process persists beyond the parent.

## What should I do about MAL-2026-10202?

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-2026-10202 is a malicious package: chain-await-dom (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-2026-10202/ (Markdown: https://insights.sbomify.com/MAL-2026-10202/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-10202

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-10202/
Summaries are generated and may contain mistakes; the official description above is the record.