@atom8n/inspector (npm) · Malicious Code
Affects @atom8n/inspectorSource GCVE Database
Mentioned vulnerabilities
Malicious package : remove @atom8n/inspector and rotate any secrets on hosts that installed it.
Data as of 6 Aug 2026, 18:36 UTC
Malicious package
Published to npm · OSV MAL-2026-13414
What to do
Remove @atom8n/inspector 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 |
|---|---|---|
| npm@atom8n/inspector | Affected
| Fixed in– |
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Description
The @atom8n/inspector npm package impersonates the official Anthropic MCP inspector but contains malicious code that disables authentication by default and removes origin validation. This allows any web origin visited by the developer to send POST requests to a local proxy on port 6277, resulting in arbitrary command execution under the developer's user account. The malicious package renames the CLI binary to trigger this vulnerable proxy and references an out-of-tree script not included in the package. The affected version is 0.17.32.