Which versions of mem8 are malicious?

The following PyPI versions of mem8 are flagged malicious: 6.0.1. Treat any of these as compromised.

How do I remediate mem8 if I installed it?

Remove mem8 from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound network activity or persistence. Use O3 Security's dependency scanner to confirm the package and its artifacts are fully purged across your stack.

Is mem8 part of a known attack campaign?

Yes — mem8 is associated with the 2026-06-compr-woodpecker campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

Can O3 Security detect mem8 in my codebase?

Yes. O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, blocking mem8 and packages like it before any post-install script runs.

Malicious package

mem8PyPI

Malicious code in mem8 (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-5319

Immediate action

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

pip uninstall mem8

What this malware does

Versions 6.0.1 were compromised.

Compromised packages start an obfuscated infostealer. The infostealer is a heavily obfuscated JavaScript code executed using Bun runtime on Python startup. It collectes all kinds of sensitive data, including API keys, credentials to package repositories, cryptocurrency assets, password manager data. Infostealer actively queries online services to collect additional secrets as well as attempts to gain persistence and spread further by publishing infected packages using collected credentials. Data are exfiltrated likely using Github. The code seems to threaten to wipe the user's data if it detects invalid GitHub tokens. Cleanup should be done with caution.

It seems to be related to the recent Mini Shai Hulud campaign.

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

Campaign: 2026-06-compr-woodpecker

Reasons (based on the campaign):

compromised-package
exfiltration-env-variables
exfiltration-cloud-tokens
exfiltration-credentials
abuses-pth
obfuscation
infostealer
The package contains code to detect if it is running in a sandbox environment.
exfiltration-crypto
files-exfiltration
destructive-actions

Malicious versions

1 flagged

6.0.1

Indicators of compromise (SHA-256)

d2fc000f15b66037b67d503cef346f32d400b0cc704417b28ff6c559c9924d8f

cf4a38271edc93b16f593b01b7aaec842dfb696754a0907bdb9cbce9df7eadab

2880f916a8853890449d88ce37a3ae68e02622909f40cdce869ab465fc5e5bde

Frequently asked questions

No. mem8 on PyPI has been identified as a malicious package (version 6.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-06-compr-woodpecker

References

Credits

Kamil Mańkowski (kam193) · analyst

Scan your dependencies

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