MalwarePublished 8 Jul 2026Updated 20 Jul 2026

@vite-js/ui (npm) · Malicious Code

Affects @vite-js/uiSource GCVE Database

Malicious package : remove @vite-js/ui and rotate any secrets on hosts that installed it.

Data as of 26 Oct 2026, 15:56 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-7021

What to do

Remove @vite-js/ui 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
npm@vite-js/ui	Affected =7.15.16 =7.15.10	Fixed in–

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Description

The npm package '@vite-js/ui' is a malicious impersonation of the official 'vite' package. It mimics the legitimate package's metadata and structure but includes a heavily obfuscated payload that executes hidden code. This payload fetches and decodes remote code, executes it via eval, and spawns a detached process that persists beyond the CLI invocation, effectively creating a backdoor. The malicious code is present in versions 7.15.10 and 7.15.16 of '@vite-js/ui'.

Impact

Installing and running the '@vite-js/ui' package versions 7.15.10 or 7.15.16 can lead to execution of arbitrary, obfuscated code fetched from a remote server. This code runs with the privileges of the user invoking the package and establishes a persistent background process, potentially allowing remote attackers to maintain access and execute further malicious actions on the affected system.

Defensive guidance

Users should avoid installing or running this package, especially versions 7.15.10 and 7.15.16. Verify package authenticity by using the official 'vite' package from trusted sources. Remove any installations of '@vite-js/ui' and investigate systems for the presence of the detached persistent processes spawned by this package. Monitor for unusual child processes and network activity related to this threat.

Summary

The '@vite-js/ui' npm package impersonates the official 'vite' package by copying author information, homepage URL, README, and distribution files. It includes an obfuscated Immediately Invoked Function Expression (IIFE) in its CLI bootstrap script that reconstructs strings to hide usage of 'http', 'child_process', 'JSON', 'eval', and 'spawn'. At runtime, it performs a JSON-RPC HTTP fetch, XOR-decodes the response, evaluates the decoded code, and spawns a detached child process running a second fetched payload. This process persists independently of the CLI session, establishing a persistent execution channel. The legitimate 'vite' package does not contain this behavior, indicating this is a dropper and backdoor malware embedded in the package.

References

Community reviews

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What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Jul 2026, 09:31 UTC

Technical details

References

Community reviews