MAL-2026-6238 Malicious code in atlasora-client (npm)

Malicious package Published
Package
atlasora-client
Registry
npm

What is MAL-2026-6238?

MAL-2026-6238 is a malicious package in atlasora-client, published on 20 Jun 2026.

Official description

package.json declares "postinstall": "node install.js", which runs automatically on npm install. install.js requires https, fs, os, and child_process; collects host identifiers via os.hostname() and os.userInfo(); invokes execSync() to gather additional system data; checks for sensitive files via fs.existsSync(); and POSTs the collected data over an https.request() to a hardcoded remote endpoint. This is the canonical install-time system-information exfiltration shape: any developer or CI machine that runs npm install atlasora-client will silently leak host identity, user account info, and reconnaissance data about local filesystem contents to an attacker-controlled destination.

What should I do about MAL-2026-6238?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

Is MAL-2026-6238 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free