Which versions of cross-stitch are malicious?

The following npm versions of cross-stitch are flagged malicious: 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7. Treat any of these as compromised.

How do I remediate cross-stitch if I installed it?

cross-stitch 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.

I already installed cross-stitch — how do I know if it already compromised me?

If cross-stitch was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

Is cross-stitch part of a known attack campaign?

Yes — cross-stitch is associated with the GHSA-9ffp-9935-xjqq 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 cross-stitch across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for cross-stitch (5 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging cross-stitch across your stack and pipelines.

Malicious package

cross-stitchnpm

Malicious code in cross-stitch (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-3502

Immediate action

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

npm uninstall cross-stitch

What this malware does

The package cross-stitch was found to contain malicious code.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

This package was compromised as part of the "Mini Shai-Hulud is back" worm by the TeamPCP threat actor.

The package will steal credentials and then propogate it to every package it has access to. The package also attempts to remain persistent.

Malicious versions

5 flagged

1.1.31.1.41.1.51.1.61.1.7

Indicators of compromise (SHA-256)

7c23bb77e762be76915e8202d11074aaa122efe0a8a32e403fa00ee8563c9bbe

7903e3610c260a2dd6197f8ccef9beefb11b7ba00fcbbc80cf9e17c79b1fff7f

5e1924464368f0c5816ee84e000cc47017f44045140feafbbc9e685d847ed5a5

bfe06155444d60d3774a256051b31f6a4814f484f33830cbe61eec7ebe611be6

Detection & response playbook

Credential / info stealer

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for cross-stitch (5 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging cross-stitch across your stack and pipelines.
If you installed it — respond
cross-stitch 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.
Did it already run?
If cross-stitch was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks cross-stitch before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. cross-stitch on npm has been identified as a malicious package (versions 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-9ffp-9935-xjqq

References

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks cross-stitch-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