arnavtest123

GHSA-7c85-9xfc-g886

Malicious code in arnavtest123 (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.1`

## Source: kam193 (d77a638a8dbd52def0458fe1227c5dd5491bc8fedb0ae9e50f28eed74e4ef89d)
During installation, the package starts a reverse shell


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


Campaign: 2026-02-jwrincident


Reasons (based on the campaign):


 - The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/arnavtest123/MAL-2026-1288.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/arnavtest123
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/arnavtest123/MAL-2026-1288.json
- https://github.com/advisories/GHSA-7c85-9xfc-g886

Compromised versions (1)

= 1.0.1

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