# MAL-2026-17181: Malicious code in reqparser (PyPI)


- **Type:** Malicious package
- **Package:** `reqparser` (PyPI)
- **Published:** 25 Sep 2026

## What is MAL-2026-17181?

MAL-2026-17181 is a malicious package in reqparser, published on 25 Sep 2026. 

### Official description

The package name 'reqparser' resembles common HTTP client / parsing library names in the Python ecosystem, a shape frequently used by typosquat lures. The tarball contains 3 files, and no concrete installer-harm behavior (credential read, environment scraping, network exfiltration, install-time fetch-and-execute, lifecycle-script exec) could be corroborated in this record. Automated deep tracing did not produce reviewable output for this artifact.

During the module import, the package starts an infostealer. It exfiltrates data from crypto currency wallets and web browsers, ensures persistence and installs further malware.

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

Campaign: 2026-09-reqparser

Reasons (based on the campaign):

 - malware

 - persistence

 - exfiltration-crypto

 - exfiltration-browser-data

 - The package contains code to detect if it is running in a sandbox environment.

 - infostealer

 - keylogger

## What should I do about MAL-2026-17181?

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-2026-17181 is a malicious package: reqparser (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-2026-17181/ (Markdown: https://insights.sbomify.com/MAL-2026-17181/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-17181

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-17181/
Summaries are generated and may contain mistakes; the official description above is the record.