Which versions of workflow-postgres-setup are malicious?

The following npm versions of workflow-postgres-setup are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate workflow-postgres-setup if I installed it?

workflow-postgres-setup establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

I already installed workflow-postgres-setup — how do I know if it already compromised me?

If workflow-postgres-setup 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.

Is workflow-postgres-setup part of a known attack campaign?

Yes — workflow-postgres-setup is associated with the IN-MAL-2026-006218 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find workflow-postgres-setup across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for workflow-postgres-setup (version 1.0.0).

Malicious package

workflow-postgres-setupnpm

Advisory published Jun 12, 2026Updated Jun 12, 2026

workflow-postgres-setup is a confirmed malicious npm package (MAL-2026-5715) that opens a backdoor for remote access (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in workflow-postgres-setup (npm)

MAL-2026-5715

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall workflow-postgres-setup

What this malware does

The package advertises itself as a Postgres/workflow setup helper but ships no library code — the declared main entry index.js is absent from the tarball. Its only functional code is bin/run.js, which on invocation (via npx workflow-postgres-setup or the installed bin) reads process.env.INIT_CWD || process.cwd(), takes the basename, and POSTs it as JSON to a hardcoded third-party endpoint at https://deepbounty.dd06-dev.fr/cb/33d63669-244d-4409-9fba-eb1d32d10cc1. The package's own description self-identifies as a dependency-confusion / npx-typosquat proof-of-concept. Project directory names can themselves be sensitive (internal codenames, customer names, unreleased product identifiers), and the beacon attributes the leak to a specific tracking ID controlled by the operator of the callback domain. The generic, functionality-promising name is consistent with typosquat / dependency-confusion bait targeting developers searching for Postgres setup tooling.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

19848a1b4a7188ada5866c459ec2b966b9aa6ba1d23e3c25b1f54939e6a6b963

Detection & response playbook

Backdoor / remote access

Find it
Search your lockfiles and build artifacts for workflow-postgres-setup (version 1.0.0).
If you installed it — respond
workflow-postgres-setup establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If workflow-postgres-setup 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. workflow-postgres-setup 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-2026-006218

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks workflow-postgres-setup-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

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