# MAL-2026-5935: Malicious code in tw-theme-kit (npm)


- **Type:** Malicious package
- **Package:** `tw-theme-kit` (npm)
- **Published:** 16 Jun 2026
- **Also known as:** GHSA-g2wq-vjqj-xc3h

## What is MAL-2026-5935?

MAL-2026-5935 is a malicious package in tw-theme-kit, published on 16 Jun 2026. 

### Official description

The published entrypoints dist/index.cjs and dist/runtime.cjs contain an injected IIFE that assigns `global.r = require` and `global.m = module`, tags the host with campaign id 'A6-Orion-271', uses a string-shuffle helper to reconstruct the identifier 'constructor', then invokes Function() on a deshuffled obfuscated blob and immediately calls the resulting function. Any consumer that does `require('tw-theme-kit')` or `import 'tw-theme-kit/runtime'` triggers attacker-controlled code at load time with full Node capabilities (fs, child_process, net) exposed via the globals. This behavior is unrelated to the package's stated purpose (a Tailwind theme plugin) and matches the fingerprint of the 'Orion' obfuscated-loader campaign. The.mjs builds and source-maps embed the same obfuscated literal, so no entrypoint is safe.

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-2026-5935?

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-2026-5935 is a malicious package: tw-theme-kit (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-2026-5935/ (Markdown: https://insights.sbomify.com/MAL-2026-5935/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-5935

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-5935/
Summaries are generated and may contain mistakes; the official description above is the record.