MalwarePublished 10 Nov 2025

advanced_python_z3n (npm) · Malicious Code

Affects advanced_python_z3nSource GCVE Database

Malicious package : remove advanced_python_z3n and rotate any secrets on hosts that installed it.

Data as of 7 Nov 2026, 17:28 UTC

Classification

Malicious package

Published to npm · OSV MAL-2025-55105

What to do

Remove advanced_python_z3n from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npmadvanced_python_z3n	Affected–	Fixed in–

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Description

The advanced_python_z3n npm package is part of a malicious campaign linked to the tea.xyz token reward scheme. It contains autopublish scripts that automatically generate and publish derivative packages with randomized Indonesian-themed names. These scripts modify package.json files to remove private flags and alter version numbers, enabling continuous republishing of variants. The intent is to inflate developer reputation scores and pollute the npm registry with malicious or spam packages.

Impact

The malicious payload leads to pollution of the npm registry with numerous derivative packages, potentially undermining trust in the ecosystem. It artificially inflates developer reputation scores, which could mislead users and automated systems relying on reputation metrics. Although no direct exploit or active exploitation is reported, the presence of such packages can degrade the quality and security posture of the npm ecosystem.

Defensive guidance

Users and maintainers should avoid installing or depending on the advanced_python_z3n package and related variants. Registry maintainers should consider removing these packages and implementing stricter controls to detect and block autopublish scripts designed for abuse.

Summary

This threat involves the advanced_python_z3n package on npm, which is associated with the tea.xyz token reward campaign. The package includes autopublish scripts (such as auto.js and autopublish.js) that automate the creation and publication of derivative packages with randomized names. These scripts manipulate package.json by removing private flags and changing version numbers, facilitating repeated republishing. This behavior aims to artificially boost developer reputation scores for the tea protocol token rewards and results in registry pollution with numerous variants.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Nov 2026, 17:28 UTC

Technical details

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