Argument Injection in prefecthq/prefect_CVE-2026-3515

8.5 / 10

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Description

A vulnerability in the `GitHubRepository` block of the `prefect-github` integration in Prefect version 3.6.18 allows an attacker to inject arbitrary git command-line options via the `reference` field. The `reference` field is concatenated directly into a `git clone` command string without proper sanitization, and then parsed by `shlex.split()`. This enables injection of options such as `-c`, leading to potential Server-Side Request Forgery (SSRF), credential theft, or remote code execution (RCE). The vulnerability affects both the `aget_directory()` and `get_directory()` methods in `src/integrations/prefect-github/prefect_github/repository.py`. This issue does not affect the GitLab and BitBucket integrations, which use a safer list-based command construction approach.

AI Analysis

Argument injection vulnerability in Prefect's GitHub integration, allowing for potential Server-Side Request Forgery (SSRF), credential theft, or remote code execution (RCE).

Basic Information

ID CVE-2026-3515

Source @huntr_ai

Published May 24, 2026 at 03:32

Affected Product

Vendor prefecthq

Product prefecthq/prefect

Version unspecified

Affected Versions prefecthq prefecthq/prefect unspecified

CWE Classification

CWE-88

AI Assessment

AI Score 8.5 / 10

AI Severity High

Vendor PrefectHQ

Product Prefect

Version 3.6.18

References

huntr.com /bounties/f3b048b8-7f4e-45ef-a5a7-cb841c39acde

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    "published": "2026-05-24T03:32:32.001Z",
    "modified": "2026-05-24T03:32:32.001Z",
    "type": "cve",
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