CVE-2026-72538
HighCVSS 8.8Summary
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.
Risk Assessment
The risk includes remote code execution on the Prefect server, which can lead to full system and data compromise. It may also enable further attacks on infrastructure.
Recommendation
It is recommended to immediately apply patches or sanitize the branch parameter in the git_clone step. Also restrict user privileges and monitor activities related to pull steps.
Original NVD description (English source)
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.