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Malicious package

wrld-devnpm

Advisory published Updated

wrld-dev is a confirmed malicious npm package (MAL-2026-4733) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in wrld-dev (npm)

MAL-2026-4733
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall wrld-dev

What this malware does

The package exposes a public authentication API (auth.user.login, auth.user.register, auth.user.get, auth.user.delete, plus an auth.system RPC surface) wired to a Supabase client constructed from AUTH_URL/AUTH_KEY values bundled in the package's own .env file. In SupaAuth/interface.js, createClient(supaAuth.url, supaAuth.key) is built from AUTH_URL=https://xyxkteprdjiyctrpbaym.supabase.co and a hardcoded JWT, with no parameterization on the public API to override the destination. Any consumer that integrates this package to authenticate its own users will transmit those end users' email and password to the author's Supabase tenant on every login/register call — the canonical silent-relay shape, where the package's advertised functionality unconditionally exfiltrates caller-supplied data to a fixed author-controlled endpoint. Compounding the impact, the published tarball also ships two Supabase JWTs in .env whose decoded payload is {"role":"service_role"} for projects xyxkteprdjiyctrpbaym and ylznhlroyioyxpasyahm. These are full DB-admin keys that bypass row-level security; anyone who installs the package can read them from the tarball and gain admin access (read/write/delete all tables, delete arbitrary auth users) to those Supabase projects. While the leaked admin keys are primarily author self-harm, in combination with the silent relay they mean any end-user credentials collected through integrators of this package land in a Supabase tenant whose admin key is publicly recoverable from the npm artifact.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

58965a325ad88c872b7c01668e4c08ca337b5fa022c15e626e23697d23fb594c

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for wrld-dev (version 1.0.0).

  2. If you installed it — respond

    wrld-dev 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 wrld-dev 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. wrld-dev on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-004134

References

Credits

  • Amazon Inspector · finder

Detect & block this

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

Explore

wrld-dev (npm) malicious package — MAL-2026-4733 | O3 Security