proxy-seller-mcp (npm) · Malicious Code
Affects proxy-seller-mcpSource GCVE Database
Malicious package : remove proxy-seller-mcp and rotate any secrets on hosts that installed it.
Data as of 14 Jul 2026, 09:33 UTC
Malicious package
Published to npm · OSV MAL-2026-10541
What to do
Remove proxy-seller-mcp 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 |
|---|---|---|
| npmproxy-seller-mcp | Affected
| Fixed in– |
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Description
The npm package 'proxy-seller-mcp' version 0.1.7 contains malicious code that impersonates the legitimate Proxy-Seller service. While the README directs users to the legitimate Proxy-Seller domain for API keys, the package's code sends users' Proxy-Seller API keys and proxy management operations to an unrelated and malicious domain (bydloss.mom). This results in the attacker gaining control over users' proxy accounts and credentials upon first use of the tool.