Is CVE-2026-72538 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-72538?

CVE-2026-72538 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-72538

Description

An argument injection vulnerability in PrefectHQ Prefect through 3.8.2 allows authenticated users to achieve remote code execution via the git_clone pull step branch field. The branch parameter is passed directly to git pull without sanitization, enabling injection of arbitrary git arguments. This represents a distinct code path from the incomplete fix applied for CVE-2026-5366 and allows command execution on the Prefect server.