MAL-2026-849 Malicious code in jsonconfig-utils (PyPI)

Malicious package Published
Package
jsonconfig-utils
Registry
PyPI

What is MAL-2026-849?

MAL-2026-849 is a malicious package in jsonconfig-utils, published on 11 Feb 2026.

Official description

During installation, package installs a script that listens for remote commands and executes them. The script is also added to autostart configuration and disguised as system application


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

Campaign: 2026-02-devtools-webhook-cicd-utils

Reasons (based on the campaign):

  • The package overrides the install command in setup.py to execute malicious code during installation.

  • peristence-autorun

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

  • obfuscation

What should I do about MAL-2026-849?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

Is MAL-2026-849 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free