AI and data stack advisories

Severe, 6 weeks1498Projects326

1498 severe, 6 weeks · 326 projects

PrefectGHSA-cw25-2p92-7f75

Prefect has an Argument Injection issue

Prefect

CVE-2026-3515 · Published May 26, 2026 · updated Sep 10, 2026

High8.5
No fix yet
GitHub advisory

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.

Affected versions

PackageAffectedFixed in
prefect
PyPI
<= 3.6.18No fix yet
Details and references
CVSS 3.0
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Severity from
GitHub (reviewed advisory)
Weakness
CWE-88
Also known as
CVE-2026-3515, PYSEC-2026-2957

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