# MAL-2026-14187: Malicious code in raectjs (npm)


- **Type:** Malicious package
- **Package:** `raectjs` (npm)
- **Published:** 18 Aug 2026

## What is MAL-2026-14187?

MAL-2026-14187 is a malicious package in raectjs, published on 18 Aug 2026. 

### Official description

scripts/postinstall.js runs on npm install and performs two attacker-beneficial actions. First, it POSTs a JSON platform snapshot to the hardcoded bare-IP endpoint http://193.70.34.101:20099/vote, with the host string reconstructed at runtime by joining ['193','70','34','101'] to evade static hostname matching. Second, it XOR-decodes (key 'stf2026') an embedded byte array (ADDON_ENC) into a URL pointing at a GitHub releases/download/.../main.exe under an attacker-controlled account, fetches the payload into %TEMP%\main.exe, and spawns it detached with stdio:'ignore' and windowsHide:true. On WSL/virtualized Linux it XOR-decodes a PowerShell bridge command and script (BRIDGE_LAUNCHER_ENC, BRIDGE_SCRIPT_PRE_ENC, BRIDGE_SCRIPT_POST_ENC) to invoke the same payload on the Windows host. The fetched binary has no pinning, no hash or signature verification, and the package name uses a cover story ('addon', 'TELEMETRY.addon') while shipping no native source consistent with a real addon (index.js exports {}). Package has no legitimate purpose beyond delivering the dropper.

## What should I do about MAL-2026-14187?

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-2026-14187 is a malicious package: raectjs (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-2026-14187/ (Markdown: https://insights.sbomify.com/MAL-2026-14187/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-14187

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-14187/
Summaries are generated and may contain mistakes; the official description above is the record.