Critical (AgentArmorHQ estimate)Supply chainOctober 19, 2026

Malicious code in claude-desktop-setup (npm)

Product: claude-desktop-setup (npm)
Affected: claude-desktop-setup (npm), all versions
Fixed in: No fix yet

Last verified against sources: October 26, 2026

Am I affected?

claude-desktop-setup (npm): affected claude-desktop-setup (npm), all versions. No fix has been reported yet.

Check your version: run npm ls claude-desktop-setup. Versions all versions of claude-desktop-setup are affected. [1]

What to do now

Remove the package if it is installed: run npm uninstall claude-desktop-setup. [1]
Remove the package from the computer. [1]
Rotate all secrets and keys stored on that computer, and do it from a different computer. [1]
Do not assume removing the package cleans the computer: the source says it may not remove all malicious software that came from installing it. [1]

General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.

Discuss this incident

What happened

The npm package claude-desktop-setup contains malicious code. [1]
Every version of the package is affected, and no patched version exists. [1]

Impact

Any computer that has this package installed or running should be treated as fully compromised. [1]
An outside entity may have been given full control of the computer. [1]

What was done

The source lists no patched version, so there is no fixed release to upgrade to. [1]

Sources

MAL-2026-18059 — OSV (Open Source Vulnerabilities)

Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.

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Brief

Malicious code in claude-desktop-setup (npm)
Product: claude-desktop-setup (npm) | Affected: claude-desktop-setup (npm), all versions | Fixed in: No fix yet
Summary: The npm package claude-desktop-setup contains malicious code.
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/10/mal-2026-18059-claude-desktop-setup-npm

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Corrections

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