MalwarePublished 10 Nov 2025

bayu-pecel69-breki (npm) · Malicious Code

Affects bayu-pecel69-brekiSource GCVE Database

Malicious package : remove bayu-pecel69-breki and rotate any secrets on hosts that installed it.

Data as of 5 Nov 2026, 07:22 UTC

Classification

Malicious package

Published to npm · OSV MAL-2025-50990

What to do

Remove bayu-pecel69-breki 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
npmbayu-pecel69-breki	Affected–	Fixed in–

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Description

The npm package bayu-pecel69-breki contains malicious code linked to a large-scale spam campaign flooding the npm registry in 2024. This campaign involves autopublish scripts that automatically generate and publish derivative packages with randomized Indonesian-themed names. The malicious payload manipulates package metadata to remove privacy flags, alter version numbers, and continuously republish variants to inflate developer reputation scores for the tea.xyz token reward system.

Impact

The malicious package pollutes the npm registry by flooding it with numerous derivative packages, which can degrade the quality and trustworthiness of the ecosystem. It manipulates package metadata to bypass privacy settings and repeatedly publishes variants, potentially misleading users and automated systems that rely on package reputation. While no direct exploitation or code execution impact on end-users is described, the campaign undermines the integrity of the npm package ecosystem and developer reputation mechanisms.

Defensive guidance

Users and maintainers should avoid installing or depending on the bayu-pecel69-breki package and related spam packages from the tea.xyz campaign. Registry maintainers should consider removing these malicious packages and enhancing detection of autopublish spam campaigns. Monitoring for and blocking packages exhibiting similar autopublish behavior is recommended.

Summary

The bayu-pecel69-breki npm package is part of the tea.xyz token reward campaign that introduced over 15,000 spam packages into the npm ecosystem in 2024. These packages include autopublish scripts (e.g., auto.js, autopublish.js) that automate the creation and publication of derivative packages with randomized names. The malicious code modifies package.json files by removing private flags and changing version numbers, enabling continuous republishing of variants. This behavior aims to manipulate developer reputation scores to gain rewards from the tea protocol token system, thereby polluting the npm registry with spam and malicious content.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Nov 2026, 07:22 UTC

Technical details

Community reviews