MAL-2026-6238 Malicious code in atlasora-client (npm)
Malicious package
Published
MAL-2026-6238 is a malicious package: atlasora-client (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-6238/ (Markdown: https://insights.sbomify.com/MAL-2026-6238/index.md)
- 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.