MalwarePublished 17 Jun 2026Updated 14 Aug 2026

@hotcappuccino/nodepull (npm) · Malicious Code

Affects @hotcappuccino/nodepullSource GCVE Database

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

Data as of 14 Aug 2026, 16:49 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-6085

What to do

Remove @hotcappuccino/nodepull 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@hotcappuccino/nodepull	Affected =1.0.0 =1.0.1	Fixed in–

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Description

The npm package @hotcappuccino/nodepull versions 1.0.0 and 1.0.1 contains malicious code that executes automatically upon import. It uses obfuscation and encryption to hide its behavior, which involves downloading a remote binary and executing it silently on the host system. This results in full compromise of any system where the package is installed or run.

Impact

Any system that installs or runs this package is fully compromised, as attacker-controlled code is executed with the privileges of the running process. Secrets and keys stored on the compromised system should be considered exposed and rotated immediately. Removing the package alone may not remove all malicious artifacts or persistence mechanisms installed by the executed payload.

Defensive guidance

Remove the @hotcappuccino/nodepull package immediately from all systems. Rotate all secrets, credentials, and keys that were stored or accessible on affected systems from a secure, uncompromised environment. Conduct a thorough incident response to identify and remediate any additional malware or persistence mechanisms installed by the executed remote binary. There is no known patch or fixed version; the package itself is malicious and should not be used.

Summary

@hotcappuccino/nodepull versions 1.0.0 and 1.0.1 ship a single obfuscated JavaScript file that, when required, decrypts and reconstructs a remote URL, downloads a binary from that URL, writes it to the system's temporary directory, and executes it as a child process with hidden console output. The obfuscation uses a large rotated string array combined with base64 and RC4 encryption to conceal URLs, commands, and module names. This behavior provides no legitimate functionality and indicates the package is a malicious backdoor that grants attacker-controlled code execution on the host system.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Aug 2026, 16:49 UTC

Technical details

References

Community reviews