Malware Payload in Backslash Package Affects npm Users and Cryptocurrency Transactions
CVE-2025-59140
8.8HIGH
What is CVE-2025-59140?
The Backslash package faced a security breach when its npm account was compromised, leading to the release of version 0.2.1 which included a malicious payload. This malware specifically targets cryptocurrency transactions, attempting to reroute funds from wallets like MetaMask. Users are advised to upgrade to version 0.2.2, fully clear their node_modules directory, and rebuild any browser bundles to ensure the removal of this threat. The npm registry has since removed the malicious version to prevent further distribution.
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Affected Version(s)
node-backslash = 0.2.1
References
CVSS V4
Score:
8.8
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None
Timeline
Vulnerability published
Vulnerability Reserved