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Vulnerability details: VCID-78r4-85ms-63hm
Vulnerability ID VCID-78r4-85ms-63hm
Aliases BIT-django-2023-46695
CVE-2023-46695
GHSA-qmf9-6jqf-j8fq
PYSEC-2023-222
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-400 Uncontrolled Resource Consumption
CWE-770 Allocation of Resources Without Limits or Throttling
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-20 Improper Input Validation
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-46695.json
epss 0.03582 https://api.first.org/data/v1/epss?cve=CVE-2023-46695
epss 0.03582 https://api.first.org/data/v1/epss?cve=CVE-2023-46695
epss 0.03582 https://api.first.org/data/v1/epss?cve=CVE-2023-46695
epss 0.03582 https://api.first.org/data/v1/epss?cve=CVE-2023-46695
epss 0.03582 https://api.first.org/data/v1/epss?cve=CVE-2023-46695
epss 0.03582 https://api.first.org/data/v1/epss?cve=CVE-2023-46695
epss 0.03582 https://api.first.org/data/v1/epss?cve=CVE-2023-46695
epss 0.03582 https://api.first.org/data/v1/epss?cve=CVE-2023-46695
cvssv3.1 7.5 https://docs.djangoproject.com/en/4.2/releases/security
cvssv4 8.7 https://docs.djangoproject.com/en/4.2/releases/security
generic_textual HIGH https://docs.djangoproject.com/en/4.2/releases/security
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-qmf9-6jqf-j8fq
cvssv3.1 7.5 https://github.com/django/django
cvssv4 8.7 https://github.com/django/django
generic_textual HIGH https://github.com/django/django
cvssv3.1 7.5 https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f
cvssv4 8.7 https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f
generic_textual HIGH https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f
cvssv3.1 7.5 https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e
cvssv4 8.7 https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e
generic_textual HIGH https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e
cvssv3.1 7.5 https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b
cvssv4 8.7 https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b
generic_textual HIGH https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b
cvssv3.1 7.5 https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml
cvssv4 8.7 https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml
cvssv3.1 7.5 https://groups.google.com/forum/#%21forum/django-announce
cvssv4 8.7 https://groups.google.com/forum/#%21forum/django-announce
generic_textual HIGH https://groups.google.com/forum/#%21forum/django-announce
cvssv3.1 7.5 https://groups.google.com/forum/#!forum/django-announce
cvssv4 8.7 https://groups.google.com/forum/#!forum/django-announce
generic_textual HIGH https://groups.google.com/forum/#!forum/django-announce
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2023-46695
cvssv4 8.7 https://nvd.nist.gov/vuln/detail/CVE-2023-46695
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2023-46695
cvssv3.1 7.5 https://security.netapp.com/advisory/ntap-20231214-0001
cvssv4 8.7 https://security.netapp.com/advisory/ntap-20231214-0001
generic_textual HIGH https://security.netapp.com/advisory/ntap-20231214-0001
cvssv3.1 7.5 https://www.djangoproject.com/weblog/2023/nov/01/security-releases
cvssv4 8.7 https://www.djangoproject.com/weblog/2023/nov/01/security-releases
generic_textual HIGH https://www.djangoproject.com/weblog/2023/nov/01/security-releases
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-46695.json
https://api.first.org/data/v1/epss?cve=CVE-2023-46695
https://docs.djangoproject.com/en/4.2/releases/security
https://docs.djangoproject.com/en/4.2/releases/security/
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/django/django
https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f
https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e
https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b
https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml
https://groups.google.com/forum/#%21forum/django-announce
https://groups.google.com/forum/#!forum/django-announce
https://security.netapp.com/advisory/ntap-20231214-0001
https://www.djangoproject.com/weblog/2023/nov/01/security-releases
https://www.djangoproject.com/weblog/2023/nov/01/security-releases/
2247097 https://bugzilla.redhat.com/show_bug.cgi?id=2247097
CVE-2023-46695 https://nvd.nist.gov/vuln/detail/CVE-2023-46695
GHSA-qmf9-6jqf-j8fq https://github.com/advisories/GHSA-qmf9-6jqf-j8fq
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-46695.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://docs.djangoproject.com/en/4.2/releases/security
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://docs.djangoproject.com/en/4.2/releases/security
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/django/django
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/django/django
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://groups.google.com/forum/#%21forum/django-announce
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://groups.google.com/forum/#%21forum/django-announce
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://groups.google.com/forum/#!forum/django-announce
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://groups.google.com/forum/#!forum/django-announce
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2023-46695
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-46695
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://security.netapp.com/advisory/ntap-20231214-0001
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://security.netapp.com/advisory/ntap-20231214-0001
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.djangoproject.com/weblog/2023/nov/01/security-releases
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://www.djangoproject.com/weblog/2023/nov/01/security-releases
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Exploit Prediction Scoring System (EPSS)
Percentile 0.877
EPSS Score 0.03582
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:48:56.911234+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2023-222.yaml 38.0.0