MalwarePublished 10 Nov 2025

utomo-gembus65-breki (npm) · Malicious Code

Affects utomo-gembus65-brekiSource GCVE Database

Malicious package : remove utomo-gembus65-breki and rotate any secrets on hosts that installed it.

Data as of 5 Nov 2026, 08:41 UTC

Classification

Malicious package

Published to npm · OSV MAL-2025-52574

What to do

Remove utomo-gembus65-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
npmutomo-gembus65-breki	Affected–	Fixed in–

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Description

The npm package utomo-gembus65-breki 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 alters package.json files to remove private flags, changes version numbers, and continuously republishes variants to pollute the npm registry.

Impact

The malicious package contributes to ecosystem pollution by flooding the npm registry with spam packages, which can degrade trust and quality of the registry. It manipulates package metadata to bypass restrictions and continuously republish variants, potentially misleading users and automated systems that rely on package metadata. There is no direct evidence of exploitation or further payload delivery beyond the registry pollution and reputation inflation.

Defensive guidance

Users and maintainers should avoid installing or trusting packages associated with this campaign. Registry maintainers should consider removing these spam packages and implementing stricter controls to detect and block autopublish scripts and automated spam campaigns.

Summary

The utomo-gembus65-breki package is part of a widespread npm spam campaign tied to the tea.xyz token reward initiative. It contains 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 by removing private flags and changing version numbers to enable continuous republishing. This activity inflates developer reputation scores illegitimately 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, 08:41 UTC

Technical details

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