codingjoe django-s3file up to 7.0.1 File Upload path traversal

Summaryinfo

A vulnerability was found in codingjoe django-s3file up to 7.0.1. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component File Upload Handler. Executing a manipulation can lead to path traversal. This vulnerability appears as CVE-2026-42196. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in codingjoe django-s3file up to 7.0.1. It has been declared as critical. This vulnerability affects some unknown processing of the component File Upload Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

django-s3file is a lightweight file upload input for Django and Amazon S3. Prior to 7.0.2, S3FileMiddleware is vulnerable to relative path traversal attacks, where an attacker can use a modified request to escape pre-signed upload locations and have the Django application load files from random locations into request.FILES. Depending on how files are handled, this may lead to confidentiality and integrity issues. This vulnerability is fixed in 7.0.2.

The advisory is available at github.com. This vulnerability was named CVE-2026-42196 since 04/25/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 7.0.2 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Vendor

• codingjoe

Name

• django-s3file

Version

• 7.0.0
• 7.0.1

Website

• Product: https://github.com/codingjoe/django-s3file/

CPE 2.3info

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CPE 2.2info

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