Malicious code in nottuff23 (npm)
The npm package 'nottuff23' version 1.7.7 is part of a bulk-published set of malicious packages that abuse the npm registry namespace. The package contains obfuscated browser service worker code and assets that do not function as a Node.js library. While installation and requiring the package do not execute code, the package is designed for registry spam and potentially malicious use at deployment. The package's payload includes a dormant web-proxy frontend and loads remote scripts from suspicious domains. Any system with this package installed should be considered compromised, and all secrets should be rotated.
AI Analysis
Technical Summary
The 'nottuff23' npm package version 1.7.7 is one of many identically-patterned packages bulk-published via an automated script that republishes the same obfuscated payload under different names. The package's main entry points to a browser service worker script using APIs not available in Node.js, indicating it is not a legitimate Node library. The payload includes obfuscated JavaScript assets forming a dormant Ultraviolet-style web-proxy frontend and an HTML file that loads remote scripts from potentially malicious domains. Although 'npm install' and 'require()' do not execute code, the package represents registry namespace abuse and spam. The full intent of the payload at deployment is unclear from the tarball alone. According to a malware advisory, any system with this package installed should be considered fully compromised, requiring immediate secret rotation and package removal.
Potential Impact
Installation of 'nottuff23' version 1.7.7 can lead to full system compromise as the package contains malicious code designed to run in a browser context and potentially enable unauthorized control or data exfiltration. The package abuses the npm registry namespace to distribute obfuscated payloads. Although default installation and requiring the package do not execute code, the presence of the package indicates a high risk of compromise. Secrets and keys stored on affected systems may be exposed and must be rotated immediately. Removing the package alone may not fully remediate the compromise due to potential persistence mechanisms.
Mitigation Recommendations
There is no official patch or fix available for this malicious package. The recommended mitigation is to immediately remove the 'nottuff23' package version 1.7.7 from all systems. All secrets, credentials, and keys stored on affected systems should be rotated from a secure, uncompromised environment. Due to the high risk of full system compromise, a thorough security assessment and remediation process should be conducted. Monitor for any signs of persistence or additional malicious activity resulting from the package installation.
Malicious code in nottuff23 (npm)
Description
The npm package 'nottuff23' version 1.7.7 is part of a bulk-published set of malicious packages that abuse the npm registry namespace. The package contains obfuscated browser service worker code and assets that do not function as a Node.js library. While installation and requiring the package do not execute code, the package is designed for registry spam and potentially malicious use at deployment. The package's payload includes a dormant web-proxy frontend and loads remote scripts from suspicious domains. Any system with this package installed should be considered compromised, and all secrets should be rotated.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The 'nottuff23' npm package version 1.7.7 is one of many identically-patterned packages bulk-published via an automated script that republishes the same obfuscated payload under different names. The package's main entry points to a browser service worker script using APIs not available in Node.js, indicating it is not a legitimate Node library. The payload includes obfuscated JavaScript assets forming a dormant Ultraviolet-style web-proxy frontend and an HTML file that loads remote scripts from potentially malicious domains. Although 'npm install' and 'require()' do not execute code, the package represents registry namespace abuse and spam. The full intent of the payload at deployment is unclear from the tarball alone. According to a malware advisory, any system with this package installed should be considered fully compromised, requiring immediate secret rotation and package removal.
Potential Impact
Installation of 'nottuff23' version 1.7.7 can lead to full system compromise as the package contains malicious code designed to run in a browser context and potentially enable unauthorized control or data exfiltration. The package abuses the npm registry namespace to distribute obfuscated payloads. Although default installation and requiring the package do not execute code, the presence of the package indicates a high risk of compromise. Secrets and keys stored on affected systems may be exposed and must be rotated immediately. Removing the package alone may not fully remediate the compromise due to potential persistence mechanisms.
Mitigation Recommendations
There is no official patch or fix available for this malicious package. The recommended mitigation is to immediately remove the 'nottuff23' package version 1.7.7 from all systems. All secrets, credentials, and keys stored on affected systems should be rotated from a secure, uncompromised environment. Due to the high risk of full system compromise, a thorough security assessment and remediation process should be conducted. Monitor for any signs of persistence or additional malicious activity resulting from the package installation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-5915
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-w6gq-6584-67xq"]
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a54ad9668715ace438f05d1
Added to database: 07/13/2026, 09:19:18 UTC
Last enriched: 07/13/2026, 09:24:29 UTC
Last updated: 07/23/2026, 17:12:01 UTC
Views: 9
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