Remote Code Execution Vulnerability in PrefectHQ Prefect Software
CVE-2026-72538

8.8HIGH

Key Information:

Vendor

Prefecthq

Status
Prefect
Vendor
CVE Published:
11 August 2026

What is CVE-2026-72538?

An argument injection vulnerability exists in PrefectHQ's Prefect software, permitting authenticated users to execute arbitrary code on the Prefect server. This flaw arises due to the branch parameter in the git_clone pull step being directly processed without proper sanitization. As a result, malicious users can inject harmful git commands, potentially compromising the security and integrity of the system. This vulnerability represents a unique attack vector distinct from previous issues, emphasizing the need for immediate attention and remediation.

Affected Version(s)

Prefect 0 <= 3.8.2

References

https://github.com/PrefectHQ/prefect

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Bobur Abdugafforov (Mahadsec)
.