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OpenAdvisories
Malicious MAL-2026-10977

lebinfmt

PyPI package · versions 1.0.0

Reported Jul 21, 2026 · Updated Aug 5, 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: amazon-inspector (9eaa5c1d1ed763b9e392bd199c360d75b25531b287de9f224e5626e121d649d4)
Analysis of lebinfmt 1.0.0 surfaced no behaviors matching supply-chain attack classes. No install-time or import-time network I/O, no credential or filesystem enumeration, no subprocess execution of fetched content, no lifecycle hooks performing sensitive actions, and no hardcoded external destinations were identified across the six files reviewed.

Source: kam193 (448ec8ad7c978d60f142f12780be3bb6ae7b90870fa4c2bf2d50ca7d4111cdfd)
This package is prepared to perform steganography decoding using the same code and was published on the same day as package 'rasterkit,' later used to deliver malicious payload.

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

Campaign: 2026-06-textwrap-toolkit-stager

Reasons (based on the campaign):

- backdoor

- obfuscation

- crypto-related

- Downloads and executes a remote malicious script.

- exfiltration-crypto

Indicators of compromise

Shown defanged and not clickable. Search any indicator to find other packages using it.

URLs

IP addresses