Intel

AIKIDO-2026-10425

google-cloud-storage is vulnerable to Path Traversal

Path Traversal Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Mar 30, 2026

60

Medium Risk

This Affects:

PYTHONgoogle-cloud-storage
2.11.0 - 3.9.0
Fixed in 3.10.0
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TL;DR

Affected versions of this package are vulnerable to a path traversal issue in download_many_to_path, where crafted blob names could cause files to be written outside the intended destination_directory. An attacker able to control blob names could exploit sequences like ../ to overwrite arbitrary files on the host filesystem, potentially leading to unauthorized file creation or modification. The issue is fixed by ensuring resolved download paths remain within the target directory and skipping unsafe blobs.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

google-cloud-storage is vulnerable to Path Traversal in versions 2.11.0 - 3.9.0.

How to fix this

Upgrade the google-cloud-storage library to the patch version.