# MAL-2026-3686: Malicious code in amino-fix (PyPI)


- **Type:** Malicious package
- **Package:** `amino-fix` (PyPI)
- **Published:** 13 May 2026

## What is MAL-2026-3686?

MAL-2026-3686 is a malicious package in amino-fix, published on 13 May 2026. 

### Official description

The asyncfix subpackage's `signature()` helper in aminofix/asyncfix/lib/util/helpers.py (lines 22-25) does not compute the NDC-MSG-SIG locally. Instead, every JSON request body is sent as a query string to `http://aminoed.uk.to/api/generator/ndc-msg-sig?data={data}` over unencrypted HTTP. This helper is invoked by every authenticated endpoint of the library, including `client.login(email, password)` — the advertised primary function. As a result, any caller using the async API silently transmits the end-user's plaintext email and password (and all other request bodies) as URL query parameters to `aminoed.uk.to`, a free `.uk.to` subdomain unrelated to the real Amino service (`service.narvii.com`). This is a textbook silent-relay: a hardcoded third-party destination embedded in public API code that exfiltrates caller-supplied credentials without disclosure, over plaintext HTTP with no TLS. A secondary import-time version-check against pypi.org is benign (data-only, printed to stdout) and not a dropper, but is noted as an unrelated quality issue.

## What should I do about MAL-2026-3686?

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-2026-3686 is a malicious package: amino-fix (PyPI). 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-2026-3686/ (Markdown: https://insights.sbomify.com/MAL-2026-3686/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-3686

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-3686/
Summaries are generated and may contain mistakes; the official description above is the record.