CVE-2021-45116

Name: CVE-2021-45116
Creator: NVD / NIST
Published: 2022-01-05T00:15:07.953+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.84%

Last modified Jun 17, 2026

CVE-2021-45116 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. Due to leveraging the Django Template Language's variable resolution logic, the dictsort template filter was potentially vulnerable to information disclosure, or an unintended method call, if passed a suitably crafted key.. EPSS estimates a 1.84% chance of exploitation in the next 30 days.

Description

An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. Due to leveraging the Django Template Language's variable resolution logic, the dictsort template filter was potentially vulnerable to information disclosure, or an unintended method call, if passed a suitably crafted key.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.84%

76.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Djangoproject	Django	>= 2.2, < 2.2.26
Djangoproject	Django	>= 3.2, < 3.2.11
Djangoproject	Django	>= 4.0, < 4.0.1
Fedoraproject	Fedora	35

References

https://docs.djangoproject.com/en/4.0/releases/security/Patch, Vendor Advisory
https://groups.google.com/forum/#%21forum/django-announce
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/
https://security.netapp.com/advisory/ntap-20220121-0005/Third Party Advisory
https://www.djangoproject.com/weblog/2022/jan/04/security-releases/Patch, Vendor Advisory
https://docs.djangoproject.com/en/4.0/releases/security/Patch, Vendor Advisory
https://groups.google.com/forum/#%21forum/django-announce
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/
https://security.netapp.com/advisory/ntap-20220121-0005/Third Party Advisory
https://www.djangoproject.com/weblog/2022/jan/04/security-releases/Patch, Vendor Advisory

Timeline

Published: Jan 5, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45116?

How severe is CVE-2021-45116?

CVE-2021-45116 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45116?

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-2021-45116?

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

Scan your code now

Source: NVD / NIST