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Malicious package

eslint-plugin-skywagon-webnpm

Advisory published Updated

eslint-plugin-skywagon-web is a confirmed malicious npm package (MAL-2026-17215) that steals credentials and exfiltrates sensitive data (malicious version 100.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in eslint-plugin-skywagon-web (npm)

MAL-2026-17215
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall eslint-plugin-skywagon-web

What this malware does

[email protected] ships an index.js that is executed via a preinstall lifecycle script on npm install. The script collects installer-side identifiers — os.hostname(), os.userInfo().username, os.homedir(), process.cwd(), dns.getServers(), and the contents of the package's package.json — and POSTs them over HTTPS to the hardcoded external collector eo1blcdjptwydyq.m.pipedream.net. A source comment ("replace burpcollaborator.net with Interactsh or pipedream") shows the file is a dependency-confusion exfiltration template repurposed as a live payload. The implausibly high version number (100.0.0) is consistent with a dependency-confusion lure intended to override an internal package of the same name during resolution.

Malicious versions

1 flagged
100.0.0

Indicators of compromise (SHA-256)

3c5d134d2e79b24ed65d2998520db05b5cc86b251ae579a6d8cec6d8fe02340f

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for eslint-plugin-skywagon-web (version 100.0.0).

  2. If you installed it — respond

    eslint-plugin-skywagon-web is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If eslint-plugin-skywagon-web was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. eslint-plugin-skywagon-web on npm has been identified as a malicious package (version 100.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020582

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks eslint-plugin-skywagon-web-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
eslint-plugin-skywagon-web (npm) malicious package — MAL-2026-17215 | O3 Security