CVE-2021-28658

Name: CVE-2021-28658
Creator: NVD / NIST
Published: 2021-04-06T15:15:13.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 3.86%

Last modified Jun 17, 2026

CVE-2021-28658 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. In Django 2.2 before 2.2.20, 3.0 before 3.0.14, and 3.1 before 3.1.8, MultiPartParser allowed directory traversal via uploaded files with suitably crafted file names. Built-in upload handlers were not affected by this vulnerability.. EPSS estimates a 3.86% chance of exploitation in the next 30 days.

Description

In Django 2.2 before 2.2.20, 3.0 before 3.0.14, and 3.1 before 3.1.8, MultiPartParser allowed directory traversal via uploaded files with suitably crafted file names. Built-in upload handlers were not affected by this vulnerability.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

3.86%

88.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Djangoproject	Django	>= 2.2, < 2.2.20
Djangoproject	Django	>= 3.0, < 3.0.14
Djangoproject	Django	>= 3.1, < 3.1.8
Debian	Debian Linux	9.0
Fedoraproject	Fedora	34

References

https://docs.djangoproject.com/en/3.1/releases/security/Vendor Advisory
https://groups.google.com/g/django-announce/c/ePr5j-ngdPUMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00008.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE/
https://security.netapp.com/advisory/ntap-20210528-0001/Third Party Advisory
https://www.djangoproject.com/weblog/2021/apr/06/security-releases/Vendor Advisory
https://docs.djangoproject.com/en/3.1/releases/security/Vendor Advisory
https://groups.google.com/g/django-announce/c/ePr5j-ngdPUMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00008.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE/
https://security.netapp.com/advisory/ntap-20210528-0001/Third Party Advisory
https://www.djangoproject.com/weblog/2021/apr/06/security-releases/Vendor Advisory

Timeline

Published: Apr 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-28658?

How severe is CVE-2021-28658?

CVE-2021-28658 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 3.86% probability of exploitation in the next 30 days.

How do I fix CVE-2021-28658?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-28658?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST