Critical Malicious Code Vulnerability in ateslassia Package

ateslassia Updated 02 Oct 2025

Summary

31/07/2025
CRITICAL
No i
Critical
Not published

MAL-2025-6436: Malicious code in ateslassia (PyPI). Affects ateslassia versions 3.0.0. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored MarkAI Find prospects already talking about the problem you solve AI watches the communities your customers use to find qualified prospects, then alerts you when a conversation is worth joining. See MarkAI

Background

The ateslassia package, available on PyPI, is designed for specific functionalities that enhance Python applications. However, it has been identified with a critical vulnerability that allows malicious code execution, posing significant risks to users and their systems. This vulnerability affects version 3.0.0 of the package, making it crucial for users to be aware of its implications.

Vulnerability Detail

The vulnerability, identified as MAL-2025-6436, originates from malicious code embedded in the ateslassia package. This code can execute harmful operations on the user's system, potentially leading to data breaches, unauthorized access, or system compromise. The specific technical details indicate that the malicious code was introduced in version 3.0.0, and users of this version are at risk. The vulnerability was reported by ReversingLabs, highlighting the importance of vigilance in open-source package management.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

pip uninstall ateslassia

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary measure, users can avoid using the ateslassia package until a secure version is confirmed. If the package is essential for your application, consider isolating its usage in a controlled environment to minimize risk.

Conclusion

The ateslassia package has a critical vulnerability that users must address promptly. By updating to a secure version and utilizing tools like Vulert for monitoring, users can protect their applications from potential threats. Awareness and proactive measures are essential in maintaining software security.

See every vulnerability recorded for ateslassia →

Share this vulnerability

FAQ

The ateslassia package is a Python library available on PyPI that provides specific functionalities for Python applications.

MAL-2025-6436 refers to a critical vulnerability in the ateslassia package that allows for the execution of malicious code, posing risks to user systems.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without needing to sign up.

If you are using version 3.0.0 of ateslassia, you should immediately update to a patched version by running pip install --upgrade ateslassia.

The vulnerability was reported by ReversingLabs, a cybersecurity firm specializing in threat detection and analysis.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

pip uninstall ateslassia

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback