# CVE-2026-42196

## Summary

- **CVE ID:** CVE-2026-42196
- **Severity:** CRITICAL
- **CVSS Score:** 9.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N)
- **CWE:** CWE-22, CWE-26
- **Published:** May 12, 2026
- **Last Modified:** May 13, 2026

## Description

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.

## Affected Products

- codingjoe — django-s3file (< 7.0.2)

## References

- [CNA](https://github.com/codingjoe/django-s3file/security/advisories/GHSA-67qg-7284-2277)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.56%
- **EPSS Percentile:** 45.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._