Improper Authentication Affecting prefect package, versions [,3.6.22.dev7)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published4 May 2026
- disclosed4 May 2026
- creditnedlir
Introduced: 4 May 2026
NewCVE-2026-7722 (opens in a new tab)How to fix?
Upgrade prefect to version 3.6.22.dev7 or higher.
Overview
prefect is a Prefect is a new workflow management system, designed for modern infrastructure and powered by the open-source Prefect Core workflow engine. Users organize Tasks into Flows, and Prefect takes care of the rest.
Affected versions of this package are vulnerable to Improper Authentication in the health check middleware API, which relies on an endswith() function to generate responses to unauthenticated GET requests. An attacker can access files that are accessible via the legitimate path to the endpoint and have the suffix ready or health, but cannot control the filenames or their contents.