MalwarePublished 6 Jul 2026Updated 14 Jul 2026

box-react-uix (npm) · Malicious Code

Affects box-react-uixSource GCVE Database

Malicious package : remove box-react-uix and rotate any secrets on hosts that installed it.

Data as of 14 Jul 2026, 09:38 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-10227

What to do

Remove box-react-uix 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
npmbox-react-uix	Affected =18.6.91	Fixed in–

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Description

The box-react-uix npm package is a malicious package published as part of a dependency confusion campaign. It uses a preinstall script to execute code during npm install that collects and sends the installer's public IP address and host telemetry, including personally identifiable information, to an attacker-controlled Sentry endpoint. The package name mimics an internal namespace to trick misconfigured resolvers into installing it instead of legitimate private dependencies. The payload is consistent across all packages published by the attacker, differing only in package name and Sentry project ID. This behavior is reconnaissance-focused, allowing attribution of installs to specific victim organizations. The package version 18.6.91 is affected. There is no official patch or fix available. Installing or running this package may fully compromise the host, and all secrets on the host should be rotated from a different machine.

Impact

Installing the box-react-uix package version 18.6.91 results in automatic execution of a preinstall script that collects and exfiltrates the host's public IP address and personally identifiable information (PII) such as hostname and OS username to an attacker-controlled Sentry endpoint. This compromises the confidentiality of the host environment and enables the attacker to identify and attribute installations to specific organizations. The runtime code also silently sends errors and PII to the attacker if the consumer does not provide their own Sentry DSN, increasing the risk of ongoing data leakage. According to the ghsa-malware source, any computer with this package installed or running should be considered fully compromised, requiring immediate secret and key rotation from a different machine. Removal of the package alone does not guarantee full remediation due to potential further compromise.

Defensive guidance

The best mitigation is to avoid installing the box-react-uix package and audit your dependency configurations to prevent dependency confusion attacks by ensuring private packages are resolved correctly. If this package has been installed, remove it immediately and consider the host fully compromised. Rotate all secrets and keys stored on the affected host from a separate, trusted machine. Monitor for any signs of further compromise and rebuild affected systems if necessary. Review and tighten npm resolver configurations to prevent installation of similarly named malicious packages.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Jul 2026, 09:38 UTC

Technical details

References

Community reviews