# MAL-2026-18132: Malicious code in libseal (PyPI)


- **Type:** Malicious package
- **Package:** `libseal` (PyPI)
- **Published:** 21 Oct 2026

## What is MAL-2026-18132?

MAL-2026-18132 is a malicious package in libseal, published on 21 Oct 2026. 

### Official description

Package libseal version 1.1.1 was scanned across 20 files with no a static rule matches and no traced behaviors indicating installer-side harm. No install-time network I/O, no lifecycle shell execution, no credential or environment scraping, no outbound exfiltration endpoints, no dropper or remote-fetch-and-execute pattern, and no persistence or backdoor code paths were observed.

In this campaign, one package (iterquarry) holds an encrypted payload, while another one (libseal) provides algorithms to decrypt and execute it. In earlier versions, the code used an embedded key and the payload was contacting a Discord bot. Starting with iterquarry 2.2.0, the key to the encrypted payload is not embedded and the payload remains unknown.

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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-10-iterquarry

Reasons (based on the campaign):

 - obfuscation

 - The malicious code is intentionally included in a dependency of the package

 - action-hidden-in-lib-usage

## What should I do about MAL-2026-18132?

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-2026-18132 is a malicious package: libseal (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-2026-18132/ (Markdown: https://insights.sbomify.com/MAL-2026-18132/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-18132

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-18132/
Summaries are generated and may contain mistakes; the official description above is the record.