ggfmttygl

GHSA-5cw2-4wmj-6488

Malicious code in ggfmttygl (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: kam193 (e741cc1df48cc526ad3a27ac702f5dea403723557b4a485f84847340310d66e5)
Package is disguised as a utility, but in fact loads encrypted code as modules. However, loading it requires knowing the decryption key which is not included in the package.


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


Campaign: 2026-05-ggfmttygl


Reasons (based on the campaign):


 - obfuscation


 - The malicious code is intentionally included in a dependency of the package

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/ggfmttygl/MAL-2026-3405.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/ggfmttygl
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/ggfmttygl/MAL-2026-3405.json
- https://github.com/advisories/GHSA-5cw2-4wmj-6488

Compromised versions (1)

= 1.0.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.