MalwarePublished 15 Oct 2026Updated 3 Nov 2026

xapi-lib (npm) · Malicious Code

Affects xapi-libSource GCVE Database

Malicious package : remove xapi-lib and rotate any secrets on hosts that installed it.

Data as of 3 Nov 2026, 23:50 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-17896

What to do

Remove xapi-lib 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
npmxapi-lib	Affected 88.2.3 – 90.3.1 4 affected builds	Fixed in–

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Description

The npm package xapi-lib versions 88.2.3, 88.2.5, 90.2.1, and 90.3.1 contains malicious code that executes a preinstall script during npm install. This script sends an HTTP request with a hardcoded authorization header to an external domain unrelated to the package's stated functionality, potentially exposing the installer's IP and environment. The package itself provides no legitimate library functionality and is considered fully malicious.

Impact

Installation of the affected xapi-lib package versions results in automatic execution of malicious code that leaks the installer's IP address and potentially other environment details to an attacker-controlled domain. The package is considered a full compromise risk, with the potential for attackers to gain control over the affected system. All secrets and keys on compromised systems should be rotated immediately from a clean environment. Removal of the package alone may not fully remediate the compromise.

Defensive guidance

Remove the xapi-lib package versions 88.2.3, 88.2.5, 90.2.1, and 90.3.1 immediately from all affected systems. Rotate all secrets and keys stored on compromised machines from a different, trusted computer. Due to the risk of full system compromise, further forensic analysis and remediation may be necessary.

Summary

The xapi-lib npm package in versions 88.2.3, 88.2.5, 90.2.1, and 90.3.1 includes a preinstall hook that runs 'node index.js' on installation. This script performs an unconditional HTTPS GET request to 'https://realwbx.com/ip.php?ip=8.8.8.8' with a hardcoded Authorization header. The request is sent automatically during installation, leaking the installer's source IP to a domain not affiliated with the package publisher. The package contains no actual library code, serving only to execute this beaconing behavior. Security sources classify any system with this package installed or running as fully compromised, recommending immediate secret rotation and removal of the package, though full remediation cannot be guaranteed due to potential further compromise.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Nov 2026, 23:50 UTC

Technical details

References

Community reviews