# MAL-2026-11012: Malicious code in encryptstringadmin (npm)


- **Type:** Malicious package
- **Package:** `encryptstringadmin` (npm)
- **Published:** 22 Jul 2026
- **Also known as:** GHSA-x92w-56m5-jchf

## What is MAL-2026-11012?

MAL-2026-11012 is a malicious package in encryptstringadmin, published on 22 Jul 2026. 

### Official description

index.js is a heavily obfuscated loader (rotated string-array decoder, control-flow flattening, self-defending/console-tamper stubs, debug-protection loop) whose only real behavior is a runtime fetch-and-eval. When any exported API (loadEncryptString/encryptStringAdmin/etc.) is invoked, the module fetches JavaScript text from cdn.jsdelivr.net/npm/encryptstringadmincore/ with cache: 'no-store' and a cache-busting query parameter `_esa=Date.now()`, then executes the response body in the consumer's process via `new Function('CryptoJS', text +...)(CryptoJS)`. The URL is not version-pinned, no integrity check or signature verification is performed, and the cache-busting parameter defeats any caching layer, so the package author (or anyone able to publish to that CDN path) can change the executed bytes at any time. The mismatch between the trivial loader logic and the heavy obfuscation used to hide it is consistent with deliberate evasion of static review.

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-2026-11012?

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-2026-11012 is a malicious package: encryptstringadmin (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-2026-11012/ (Markdown: https://insights.sbomify.com/MAL-2026-11012/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-11012

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-11012/
Summaries are generated and may contain mistakes; the official description above is the record.