CVE-2026-3515

描述

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.

如何修補 CVE-2026-3515

目前尚未發布修補版本。可考慮移除受影響套件,或參考下方連結中的上游建議。

• —未列出修補版本
• —未列出修補版本

CVE-2026-3515 正在被利用嗎?

低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, <= 3.6.18
• from 0, <= 3.6.18

CVSS 分數

參考連結(5)

• ADVISORYgithub.com/advisories/GHSA-cw25-2p92-7f75
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-3515
• PATCHgithub.com/PrefectHQ/prefect
• PATCHpypi.org/project/prefect
• WEBhuntr.com/bounties/f3b048b8-7f4e-45ef-a5a7-cb841c39acde