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Vulnerability details: VCID-e9k9-1s9f-dbgv
Vulnerability ID VCID-e9k9-1s9f-dbgv
Aliases CVE-2025-14550
GHSA-33mw-q7rj-mjwj
Summary Django has Inefficient Algorithmic Complexity An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. `ASGIRequest` allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Jiyong Yang for reporting this issue.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-407 Inefficient Algorithmic Complexity
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-167 Improper Handling of Additional Special Element
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-14550.json
epss 0.00059 https://api.first.org/data/v1/epss?cve=CVE-2025-14550
epss 0.00059 https://api.first.org/data/v1/epss?cve=CVE-2025-14550
epss 0.00059 https://api.first.org/data/v1/epss?cve=CVE-2025-14550
epss 0.00059 https://api.first.org/data/v1/epss?cve=CVE-2025-14550
epss 0.00059 https://api.first.org/data/v1/epss?cve=CVE-2025-14550
epss 0.00059 https://api.first.org/data/v1/epss?cve=CVE-2025-14550
epss 0.00062 https://api.first.org/data/v1/epss?cve=CVE-2025-14550
epss 0.00062 https://api.first.org/data/v1/epss?cve=CVE-2025-14550
cvssv4 2.7 https://docs.djangoproject.com/en/dev/releases/security
generic_textual LOW https://docs.djangoproject.com/en/dev/releases/security
cvssv3.1 7.5 https://docs.djangoproject.com/en/dev/releases/security/
ssvc Track https://docs.djangoproject.com/en/dev/releases/security/
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr LOW https://github.com/advisories/GHSA-33mw-q7rj-mjwj
cvssv4 2.7 https://github.com/django/django
generic_textual LOW https://github.com/django/django
cvssv4 2.7 https://github.com/django/django/commit/eb22e1d6d643360e952609ef562c139a100ea4eb
generic_textual LOW https://github.com/django/django/commit/eb22e1d6d643360e952609ef562c139a100ea4eb
cvssv3.1 7.5 https://groups.google.com/g/django-announce
cvssv4 2.7 https://groups.google.com/g/django-announce
generic_textual LOW https://groups.google.com/g/django-announce
ssvc Track https://groups.google.com/g/django-announce
cvssv4 2.7 https://nvd.nist.gov/vuln/detail/CVE-2025-14550
generic_textual LOW https://nvd.nist.gov/vuln/detail/CVE-2025-14550
cvssv4 2.7 https://www.djangoproject.com/weblog/2026/feb/03/security-releases
generic_textual LOW https://www.djangoproject.com/weblog/2026/feb/03/security-releases
cvssv3.1 7.5 https://www.djangoproject.com/weblog/2026/feb/03/security-releases/
ssvc Track https://www.djangoproject.com/weblog/2026/feb/03/security-releases/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-14550.json
https://api.first.org/data/v1/epss?cve=CVE-2025-14550
https://docs.djangoproject.com/en/dev/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/eb22e1d6d643360e952609ef562c139a100ea4eb
https://groups.google.com/g/django-announce
https://nvd.nist.gov/vuln/detail/CVE-2025-14550
https://www.djangoproject.com/weblog/2026/feb/03/security-releases
1126914 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1126914
2436341 https://bugzilla.redhat.com/show_bug.cgi?id=2436341
GHSA-33mw-q7rj-mjwj https://github.com/advisories/GHSA-33mw-q7rj-mjwj
RHSA-2026:2694 https://access.redhat.com/errata/RHSA-2026:2694
RHSA-2026:3958 https://access.redhat.com/errata/RHSA-2026:3958
RHSA-2026:3959 https://access.redhat.com/errata/RHSA-2026:3959
RHSA-2026:6291 https://access.redhat.com/errata/RHSA-2026:6291
security-releases https://www.djangoproject.com/weblog/2026/feb/03/security-releases/
USN-8009-1 https://usn.ubuntu.com/8009-1/
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-2025-14550.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U Found at https://docs.djangoproject.com/en/dev/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://docs.djangoproject.com/en/dev/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)

network

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-03T16:27:25Z/ Found at https://docs.djangoproject.com/en/dev/releases/security/
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U 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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U Found at https://github.com/django/django/commit/eb22e1d6d643360e952609ef562c139a100ea4eb
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)

network

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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/g/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)

network

adjacent_network

local

physical

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U Found at https://groups.google.com/g/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)

network

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-03T16:27:25Z/ Found at https://groups.google.com/g/django-announce
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U Found at https://nvd.nist.gov/vuln/detail/CVE-2025-14550
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)

network

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U Found at https://www.djangoproject.com/weblog/2026/feb/03/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)

network

adjacent

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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/2026/feb/03/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)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-03T16:27:25Z/ Found at https://www.djangoproject.com/weblog/2026/feb/03/security-releases/
Exploit Prediction Scoring System (EPSS)
Percentile 0.18717
EPSS Score 0.00059
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:53:08.584555+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-33mw-q7rj-mjwj/GHSA-33mw-q7rj-mjwj.json 38.0.0