# MAL-2026-10451: Malicious code in gifuct (npm)


- **Type:** Malicious package
- **Package:** `gifuct` (npm)
- **Published:** 13 Jul 2026
- **Also known as:** GHSA-829c-v26f-5g9m

## What is MAL-2026-10451?

MAL-2026-10451 is a malicious package in gifuct, published on 13 Jul 2026. 

### Official description

Package name typosquats the legitimate `gifuct-js` GIF parser and re-exports it as cover. On module load, code reconstructs the host `filament-zap.vercel.app` and paths `/service/assets/fetchBinary` / `/service/assets/fetchLinuxBinary` from String.fromCharCode numeric arrays, downloads a platform-specific executable, writes it to a `WinMetrics`/`WinService.exe` path under the user data directory, chmods it 0755 on Linux, and spawns it detached with stdio ignored and unref'd. The payload is fetched over an obfuscated, unpinned URL with no hash or signature verification, and the download-and-execute path is unrelated to the advertised GIF-parsing purpose.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

## What should I do about MAL-2026-10451?

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-2026-10451 is a malicious package: gifuct (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-2026-10451/ (Markdown: https://insights.sbomify.com/MAL-2026-10451/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-10451

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-10451/
Summaries are generated and may contain mistakes; the official description above is the record.