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Vulnerabilities

Vulnerability · CVE-2023-46695

An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7.

Published Nov 2, 2023 · catalog updated Jun 17, 2026 · An issue was discovered

Last checked Nov 8, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2023-46695 is not in CISA KEV. FIRST estimates a 53.45% chance of exploitation in the next 30 days. Check whether you run An issue was discovered.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (An issue was discovered).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
53.45%
Remediation
Version ranges on file
Affected products
cpe djangoproject/django

An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe djangoproject/django< 3.2.23
  • cpe djangoproject/django< 4.1.13
  • cpe djangoproject/django< 4.2.7

How to fix CVE-2023-46695

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-46695 is not in CISA KEV. FIRST estimates a 53.45% chance of exploitation in the next 30 days. Check whether you run An issue was discovered.

Which versions are affected?

Compare what you have installed with < 3.2.23, < 4.1.13, < 4.2.7. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 53.45%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Django security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 2, 2023 · Monitored products — high

    Detected

    An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.

Sources

  • CVE.orgVulnerability recordCVE-2023-46695

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2023-46695

    An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 8, 2026
  • Monitored products — highNov 7, 2026