MalwarePublished 29 Jun 2026

@digitalcnzz/commonmodule (npm) · Malicious Code

Affects @digitalcnzz/commonmoduleSource GCVE Database

Malicious package : remove @digitalcnzz/commonmodule and rotate any secrets on hosts that installed it.

Data as of 29 Jun 2026, 22:45 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-6595

What to do

Remove @digitalcnzz/commonmodule 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@digitalcnzz/commonmodule	Affected–	Fixed in–

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Description

The npm package @digitalcnzz/commonmodule is identified as purpose-built malware that exfiltrates host information and environment secrets during installation. It executes a postinstall hook that collects detailed system and environment data, including sensitive tokens and keys, then sends this data to an attacker-controlled Feishu/Lark webhook. The malware includes multiple anti-analysis techniques to evade detection in sandbox and CI environments. No patch or remediation is currently documented.

Impact

If installed, this malicious package can leak sensitive environment variables and host information, including credentials and tokens commonly present in developer and CI environments, to an attacker-controlled endpoint. This exposure can lead to unauthorized access to cloud resources, code repositories, and other sensitive infrastructure components. The malware's anti-analysis features increase the likelihood of evading detection during automated scans or sandbox analysis.

Defensive guidance

Until an official fix or removal guidance is available, users should avoid installing the @digitalcnzz/commonmodule package. Review and audit dependencies for this package and remove any instances found. Monitor for unexpected network traffic to Feishu/Lark webhook endpoints and consider rotating any potentially exposed credentials. Employ supply chain security best practices such as verifying package integrity and using trusted sources.

Summary

This threat involves a malicious npm package, @digitalcnzz/commonmodule, which activates during the npm install process via an obfuscated postinstall hook. After a randomized delay, it collects host details (hostname, username, platform, Node version, IP addresses, registry URL) and dumps the entire process environment variables, which may contain sensitive credentials such as AWS keys and tokens. The stolen data is exfiltrated to an attacker-controlled Feishu/Lark bot webhook endpoint, with the destination obfuscated through character code transformations and XOR encoding. The malware employs extensive anti-analysis checks to detect sandbox, honeypot, and CI environments, exiting silently if such conditions are detected.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Jun 2026, 22:45 UTC

Technical details

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