Malicious code in wagmi-react (npm)
The npm package 'wagmi-react' version 1.0.0 is a malicious package impersonating the legitimate wagmi/viem wallet API. It exports functions and a constructor that mimic the real API, but when a WalletClient is instantiated with a private key, it silently sends the private key along with the host's OS hostname and username to an attacker-controlled endpoint. This enables attackers to fully compromise wallets of developers who mistakenly use this malicious package instead of the legitimate one.
AI Analysis
Technical Summary
The malicious 'wagmi-react' npm package version 1.0.0 impersonates the wagmi/viem wallet API by exporting createWalletClient, parseAccount, and a WalletClient constructor. When a caller creates a WalletClient instance with a private key, the package serializes the private key along with the OS hostname and username, then sends this data via a POST request to a hardcoded attacker-controlled Pipedream webhook URL. This behavior allows attackers to capture wallet private keys from developers who accidentally install this malicious package, leading to full wallet compromise. The package name and API surface are designed to mimic the legitimate wagmi/viem ecosystem to trick developers.
Potential Impact
Any developer using this malicious package and passing a wallet private key to the WalletClient constructor will have their private key exfiltrated to an attacker-controlled endpoint. This results in full compromise of the affected wallet, potentially leading to theft of funds or unauthorized transactions. The compromise is silent and occurs without user notification.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately verify that they are using the legitimate wagmi/viem packages from trusted sources and remove any instances of the malicious 'wagmi-react' package version 1.0.0. Avoid installing packages with names that closely mimic trusted libraries. Rotate any private keys that may have been exposed through this package. Monitor for suspicious wallet activity and consider using hardware wallets or other secure key management solutions.
Malicious code in wagmi-react (npm)
Description
The npm package 'wagmi-react' version 1.0.0 is a malicious package impersonating the legitimate wagmi/viem wallet API. It exports functions and a constructor that mimic the real API, but when a WalletClient is instantiated with a private key, it silently sends the private key along with the host's OS hostname and username to an attacker-controlled endpoint. This enables attackers to fully compromise wallets of developers who mistakenly use this malicious package instead of the legitimate one.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The malicious 'wagmi-react' npm package version 1.0.0 impersonates the wagmi/viem wallet API by exporting createWalletClient, parseAccount, and a WalletClient constructor. When a caller creates a WalletClient instance with a private key, the package serializes the private key along with the OS hostname and username, then sends this data via a POST request to a hardcoded attacker-controlled Pipedream webhook URL. This behavior allows attackers to capture wallet private keys from developers who accidentally install this malicious package, leading to full wallet compromise. The package name and API surface are designed to mimic the legitimate wagmi/viem ecosystem to trick developers.
Potential Impact
Any developer using this malicious package and passing a wallet private key to the WalletClient constructor will have their private key exfiltrated to an attacker-controlled endpoint. This results in full compromise of the affected wallet, potentially leading to theft of funds or unauthorized transactions. The compromise is silent and occurs without user notification.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately verify that they are using the legitimate wagmi/viem packages from trusted sources and remove any instances of the malicious 'wagmi-react' package version 1.0.0. Avoid installing packages with names that closely mimic trusted libraries. Rotate any private keys that may have been exposed through this package. Monitor for suspicious wallet activity and consider using hardware wallets or other secure key management solutions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12498
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a735744bf8831d539159c8b
Added to database: 08/05/2026, 15:31:16 UTC
Last enriched: 08/05/2026, 17:20:04 UTC
Last updated: 09/07/2026, 22:03:47 UTC
Views: 16
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