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Malicious package

socketxioPyPI

Advisory published Updated

socketxio is a confirmed malicious PyPI package (MAL-2026-1084) that steals credentials and exfiltrates sensitive data (malicious versions 1.5, 1.6, 1.7…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in socketxio (PyPI)

MAL-2026-1084
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall socketxio

What this malware does

Using the provided function results in exfiltrating Discord tokens to a hardcoded location

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-02-old-socketxio

Reasons (based on the campaign):

  • exfiltration-credentials

  • action-hidden-in-lib-usage

Malicious versions

8 flagged
1.51.61.71.81.92.02.12.2

Indicators of compromise (SHA-256)

0ebdf2a14543a49aa2f1b1fdeb5a713a43da8326a370249ca370d9023283fb31

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for socketxio (8 malicious versions).

  2. If you installed it — respond

    socketxio 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 socketxio 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. socketxio on PyPI has been identified as a malicious package (versions 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-02-old-socketxio

References

Credits

  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks socketxio-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

socketxio (PyPI) malicious package — MAL-2026-1084 | O3 Security