VULNERABILITY INTELLIGENCE

CVE-2026-3515

CVSS score8.5 HIGH
EPSS probability0.30%
CISA KEVNot currently listed
Published2026-05-24
Last modified2026-07-23
CVSS vectorCVSS: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.

Weakness classification

  • security@huntr.dev: CWE-88

Primary references