LWA-2026-5376 confirmed malware

u-paging@0.0.0

Malicious code in u-paging (npm)

T1195.002 · Compromise Software Supply ChainT1656 · Impersonation

Analysis

Namespace-squatting package u-paging@0.0.0 contains no executable code — only an empty shell package.json, README, and LICENSE. The package impersonates the well-known open-source developer Anthony Fu (antfu) in its author field, homepage, and README template, but is published by a different actor. This is a pre-positioning step: reserving the package name under a falsely claimed identity to later ship a malicious version that would auto-update for existing installs.

analyzed by
Leitwacht
first seen
Jun 15, 2026, 12:31 PM
analyzed
Jun 15, 2026, 12:32 PM

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.