# MAL-2026-12402: Malicious code in new-native-tools-linux-x64-gnu (npm)


- **Type:** Malicious package
- **Package:** `new-native-tools-linux-x64-gnu` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-12402?

MAL-2026-12402 is a malicious package in new-native-tools-linux-x64-gnu, published on 5 Aug 2026. 

### Official description

The package ships a single ~10 MB Rust-compiled Linux x86_64 N-API native module (tools.linux-x64-gnu.node) referenced by `main`, with a two-line README that describes it only as a platform binary and no source. The binary embeds Chromium browser-secret extraction primitives — the Chromium `cookies` table schema (host_key, top_frame_site_key, has_cross_site_ancestor, unique-index DDL) and the Chrome Login Data password-store fingerprint (`Found login for`), plus SQLite/SQLCipher symbols including `SQLITE_AUTH_USER` — the components required to read Chrome/Chromium Cookies and Login Data stores on the host that loads the module. The same binary embeds a full HTTPS client (hyper, ureq, TLS 1.2/1.3 handshake constants, HTTP/2 framing) with proxy-environment awareness (`HTTPS_PROXY`, `ALL_PROXY`) and host-fingerprinting reads (`/etc/lsb-release`, `/dev/disk/by-id/`, `bogomips per cpu`, `CPU implementer`, `network_adapters`, `gethostname`) — the transport layer and host-identification data for exfiltration. The version tag `3.1.40-chrom-553-fix-undeletable-import-cookies-355-1784226602` labels the actual capability (Chromium cookie import) while the package name and README hide it behind a generic "native-tools" cover story. The exfil destination is assembled at runtime rather than appearing as a static literal, consistent with obfuscation of C2. Loading this module via `require()` exposes the installer's browser cookies and saved passwords to an attacker-controlled destination.

## What should I do about MAL-2026-12402?

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-2026-12402 is a malicious package: new-native-tools-linux-x64-gnu (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-2026-12402/ (Markdown: https://insights.sbomify.com/MAL-2026-12402/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12402

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12402/
Summaries are generated and may contain mistakes; the official description above is the record.