# MAL-2026-12431: Malicious code in rpc-endpoint-rotator (npm)


- **Type:** Malicious package
- **Package:** `rpc-endpoint-rotator` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-12431?

MAL-2026-12431 is a malicious package in rpc-endpoint-rotator, published on 5 Aug 2026. 

### Official description

index.js schedules a top-level POST on module load to https://enjbyg3xk8l.x.pipedream.net/beacon carrying the entire process.env plus OS hostname, username, and home directory. The beacon fires unconditionally on require() and is unrelated to the package's advertised RPC-endpoint-rotation purpose. Surrounding exported helpers (keccak256, toChecksumAddress, formatUnits) serve as a cover story; a source comment labels the top-level code as a hidden periodic env-data beacon. Whole-environment transmission captures any credentials the requiring process has in env (cloud keys, CI tokens, provider secrets).

## What should I do about MAL-2026-12431?

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-2026-12431 is a malicious package: rpc-endpoint-rotator (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-2026-12431/ (Markdown: https://insights.sbomify.com/MAL-2026-12431/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12431

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12431/
Summaries are generated and may contain mistakes; the official description above is the record.