# MAL-2026-1290: Malicious code in remjsonparse (PyPI)


- **Type:** Malicious package
- **Package:** `remjsonparse` (PyPI)
- **Published:** 9 Mar 2026

## What is MAL-2026-1290?

MAL-2026-1290 is a malicious package in remjsonparse, published on 9 Mar 2026. 

### Official description

During import, package starts advanced compromise actions: exfiltrates AWS and git credentials, commands history, security tools in use. After that, the code waits for further commands from C2. The code is also prepared to configure persistence through autostart keys, crontabs or Linux services, as well as to configure new SSH credentials for remote access.

---

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

Campaign: 2026-03-remjsonparse

Reasons (based on the campaign):

 - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

 - typosquatting

 - peristence-autorun

 - exfiltration-generic

 - exfiltration-credentials

## What should I do about MAL-2026-1290?

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-2026-1290 is a malicious package: remjsonparse (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-2026-1290/ (Markdown: https://insights.sbomify.com/MAL-2026-1290/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-1290

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-1290/
Summaries are generated and may contain mistakes; the official description above is the record.