Malicious code in xvinleys (npm)
The xvinleys npm package (version 1.0.0) is a malicious fork of the Baileys WhatsApp Web library that silently subscribes the victim's WhatsApp account to attacker-controlled channels without user consent. It achieves this by injecting code that issues an authenticated FOLLOW query using the victim's own WhatsApp session. The target channels are obfuscated or dynamically fetched to evade detection. This behavior does not involve credential theft, persistence, or arbitrary code execution.
AI Analysis
Technical Summary
The xvinleys package is part of a family of over 100 near-identical malicious forks of the Baileys WhatsApp Web library. These forks inject covert subscription actions into the WhatsApp socket layer. Upon connection, the injected code sends an authenticated 'w:mex' FOLLOW query to attacker-chosen WhatsApp Channel/Newsletter JIDs, subscribing the victim's account without their knowledge. The target JIDs are obfuscated using various techniques or fetched dynamically from attacker-controlled remote sources, allowing the attacker to change targets post-installation. The malicious action leverages the installer's authenticated WhatsApp session but does not exfiltrate credentials, establish persistence, or execute arbitrary remote code.
Potential Impact
The primary impact is unauthorized subscription of the victim's WhatsApp account to attacker-controlled channels, potentially leading to unwanted content delivery and privacy concerns. There is no evidence of credential theft, persistence mechanisms, or remote code execution associated with this threat.
Mitigation Recommendations
No official patch or remediation guidance is provided. Users should avoid installing or using the xvinleys package version 1.0.0 and any related forks. Review and audit dependencies for suspicious or forked packages before installation. Since this is a client-side malicious package, removing the package and revoking WhatsApp session tokens may help mitigate the issue. Patch status is not yet confirmed — check the vendor advisory or npm security advisories for current remediation guidance.
Malicious code in xvinleys (npm)
Description
The xvinleys npm package (version 1.0.0) is a malicious fork of the Baileys WhatsApp Web library that silently subscribes the victim's WhatsApp account to attacker-controlled channels without user consent. It achieves this by injecting code that issues an authenticated FOLLOW query using the victim's own WhatsApp session. The target channels are obfuscated or dynamically fetched to evade detection. This behavior does not involve credential theft, persistence, or arbitrary code execution.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The xvinleys package is part of a family of over 100 near-identical malicious forks of the Baileys WhatsApp Web library. These forks inject covert subscription actions into the WhatsApp socket layer. Upon connection, the injected code sends an authenticated 'w:mex' FOLLOW query to attacker-chosen WhatsApp Channel/Newsletter JIDs, subscribing the victim's account without their knowledge. The target JIDs are obfuscated using various techniques or fetched dynamically from attacker-controlled remote sources, allowing the attacker to change targets post-installation. The malicious action leverages the installer's authenticated WhatsApp session but does not exfiltrate credentials, establish persistence, or execute arbitrary remote code.
Potential Impact
The primary impact is unauthorized subscription of the victim's WhatsApp account to attacker-controlled channels, potentially leading to unwanted content delivery and privacy concerns. There is no evidence of credential theft, persistence mechanisms, or remote code execution associated with this threat.
Mitigation Recommendations
No official patch or remediation guidance is provided. Users should avoid installing or using the xvinleys package version 1.0.0 and any related forks. Review and audit dependencies for suspicious or forked packages before installation. Since this is a client-side malicious package, removing the package and revoking WhatsApp session tokens may help mitigate the issue. Patch status is not yet confirmed — check the vendor advisory or npm security advisories for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-17409
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6abd30852a4e24523d340115
Added to database: 09/30/2026, 15:53:41 UTC
Last enriched: 09/30/2026, 16:00:05 UTC
Last updated: 09/30/2026, 22:38:50 UTC
Views: 2
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