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OpenAdvisories
Malicious MAL-2026-3201

lightning

PyPI package · versions 2.6.2, 2.6.3

Reported Apr 30, 2026 · Updated Jun 8, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: kam193 (703ac419d775488be137d7e01517d768da0b5581ab63338fb9523f2289f2b92c)
Versions 2.6.2, 2.6.3 were compromised.

Compromised versions contain injected code that starts automatically during importing the module, downloads (legitimate) JavaScript runtime, and executes included JavaScript infostealer. It collects credentials from multiple sources (e.g. files, process memory, cloud metadata endpoints, CLI commands like gh or gcloud), sensitive cryptocurrency data, shell history files. It also attempts to spread itself using discovered credentials to other repositories and packages.

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

Campaign: 2026-04-compr-lightning

Reasons (based on the campaign):

- infostealer

- files-exfiltration

- exfiltration-ssh-keys

- exfiltration-crypto

- exfiltration-credentials

- compromised-package