MalwarePublished 10 Nov 2025

bayu-klanting99-pore (npm) · Malicious Code

Affects bayu-klanting99-poreSource GCVE Database

Malicious package : remove bayu-klanting99-pore and rotate any secrets on hosts that installed it.

Data as of 5 Nov 2026, 07:21 UTC

Classification

Malicious package

Published to npm · OSV MAL-2025-50962

What to do

Remove bayu-klanting99-pore 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-klanting99-pore	Affected–	Fixed in–

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Description

The npm package bayu-klanting99-pore contains malicious code linked to a large-scale spam campaign associated with the tea.xyz token reward system. This campaign involves over 15,000 spam packages that use autopublish scripts to automatically generate and publish derivative packages with randomized Indonesian-themed names. The malicious payload modifies package metadata to remove private flags, alter version numbers, and continuously republish variants, thereby polluting the npm registry and inflating developer reputation scores illegitimately.

Impact

This malicious package undermines the integrity of the npm registry by flooding it with spam packages that manipulate package metadata to bypass restrictions and continuously republish. This can degrade the quality of the npm ecosystem, mislead users and automated systems relying on package metadata, and distort developer reputation metrics tied to the tea.xyz token reward campaign. There is no indication of direct exploitation or compromise of user systems beyond registry pollution.

Defensive guidance

Users and developers should avoid installing the bayu-klanting99-pore package and other related spam packages from the tea.xyz campaign. Registry maintainers and security teams should monitor and remove these spam packages to preserve npm ecosystem integrity. Since this is a malicious package rather than a vulnerability, remediation involves blocking or deleting the package rather than patching.

Summary

The bayu-klanting99-pore npm package is part of a widespread malicious campaign flooding the npm registry with spam packages tied to the tea.xyz token reward system. 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 to enable continuous republishing. This behavior aims to inflate developer reputation scores fraudulently and pollutes the npm ecosystem with numerous spam packages.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Nov 2026, 07:21 UTC

Technical details

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