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OpenAdvisories
Malicious MAL-2026-3035

promptflow-runtime

PyPI package · versions 99999999.0.0

Reported Apr 25, 2026 · Updated Apr 25, 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 (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.

Indicators of compromise

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

Domains