Arbitrary Code Injection Affecting prefect package, versions [0,]
Threat Intelligence
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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- published6 Jul 2026
- disclosed20 Jun 2026
- creditUnknown
Introduced: 20 Jun 2026
CVE-2026-5366 (opens in a new tab)How to fix?
There is no fixed version for prefect.
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 Arbitrary Code Injection via improper validation of user-controlled input in the GitRepository storage class, specifically the commit_sha and directories parameters. An attacker can execute arbitrary commands on worker machines by injecting malicious git flags, such as --upload-pack, which can lead to execution of external programs. This is only exploitable if the attacker has deployment creation permissions in a multi-tenant environment.