CVE-2026-3515 (GCVE-0-2026-3515)

Vulnerability from cvelistv5 – Published: 2026-05-24 03:32 – Updated: 2026-05-26 15:21
VLAI
Title
Argument Injection in prefecthq/prefect
Summary
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.
Severity
8.5 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 15:08 UTC
CWE
  • CWE-88 - Improper Neutralization of Argument Delimiters in a Command
Assigner
@huntr_ai CNA under the mitre root
CNA scorecard C 65/100 over 40 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
prefecthq prefecthq/prefect Affected: unspecified , ≤ latest (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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