promptflow-runtime

GHSA-59mq-wfvv-pmr8

Malicious code in promptflow-runtime (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 99999999.0.0`

## Source: kam193 (5b42466489944454bbab304af3aa9869e3f0483cafc76b4da896f6512bb4c627)
During import, package collects basic information about the system, performs deep fingerprinting, and reports the data to the remote target. The package description attempts to build an impression it's an official package. The package name refers to the Docker image used by Microsoft's project: https://github.com/microsoft/promptflow/blob/6bfdec06ef16d875ca3b1744a1ef133f08c35340/docs/cloud/azureai/runtime-change-log.md?plain=1#L8


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


Campaign: 2026-04-promptflow-runtime


Reasons (based on the campaign):


 - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.


 - dependency-confusion


 - impersonation


 - The package contains code to detect if it is running in a sandbox environment.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/promptflow-runtime/MAL-2026-3035.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/promptflow-runtime
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/promptflow-runtime/MAL-2026-3035.json
- https://github.com/advisories/GHSA-59mq-wfvv-pmr8

Compromised versions (1)

= 99999999.0.0

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