Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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Executive Summary

CVE-2026-7725 is a git argument injection vulnerability in the PrefectHQ prefect repository affecting the GitRepository pull steps. The vulnerability arises because user-controlled inputs, specifically the commit_sha and directory arguments, were passed directly as positional arguments to git subprocess commands without proper validation. This allowed attackers to inject malicious git command flags remotely, potentially leading to remote code execution on worker machines processing deployments.

The vulnerability was fixed by adding input validation to ensure commit_sha values are valid hexadecimal strings between 4 and 64 characters, rejecting flag injection attempts. Additionally, a double dash (`--`) separator was introduced in git commands to prevent directory names starting with `--` from being interpreted as command-line options, mitigating path injection risks.

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Impact Analysis

This vulnerability can impact you by allowing a remote attacker to execute arbitrary commands on the worker machines that process deployments using Prefect's GitRepository pull functionality. By injecting malicious git command flags through the commit_sha or directory arguments, an attacker could gain unauthorized control or cause unintended actions on your systems.

Such remote code execution risks can lead to system compromise, data breaches, or disruption of workflow orchestration processes.

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Detection Guidance

This vulnerability involves argument injection via the commit_sha and directories parameters in GitRepository pull steps, which can lead to remote code execution. Detection can focus on identifying suspicious or malformed commit_sha values or directory names that start with '--' which are used to inject commands.

You can monitor logs or intercept git commands executed by Prefect workers to check for commit_sha values that do not match the expected hexadecimal pattern (4-64 characters) or directory names starting with '--'.

Example commands to detect suspicious usage might include:

• Checking git commands in logs for commit_sha values containing unexpected flags or shell commands, e.g., grep for '--upload-pack' or other suspicious strings.
• Validating commit_sha values with a regex pattern to ensure they are hexadecimal strings of length 4 to 64 characters, e.g., using grep or a script: `grep -E '^[0-9a-fA-F]{4,64}$'`.
• Searching for directory names starting with '--' in configuration or runtime parameters to detect potential injection attempts.

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Mitigation Strategies

The primary mitigation step is to upgrade PrefectHQ prefect to version 3.6.25.dev7 or later, which includes the patch that fixes this vulnerability.

The patch introduces input validation for commit_sha to ensure it matches a hexadecimal pattern and adds a '--' separator in git commands to prevent argument injection.

Additionally, review and sanitize any user-controlled inputs related to commit_sha and directory names to avoid injection of malicious flags or commands.

Monitor for warnings about directory names starting with '--' as the patched version emits UserWarnings to alert about suspicious directory names.

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