{"schema_version":"1.9.0","id":"CVE-2025-14550","published":"2026-02-03T14:38:15.875Z","modified":"2026-08-12T03:51:25.074547267Z","aliases":["BIT-django-2025-14550","GHSA-33mw-q7rj-mjwj","PYSEC-2026-43"],"related":["CGA-jj39-8jvf-389j","SUSE-SU-2026:0440-1","openSUSE-SU-2026:10145-1","openSUSE-SU-2026:10160-1","openSUSE-SU-2026:10216-1","openSUSE-SU-2026:10247-1","openSUSE-SU-2026:11270-1","openSUSE-SU-2026:20184-1"],"summary":"Potential denial-of-service vulnerability via repeated headers when using ASGI","details":"An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28.\n`ASGIRequest` allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers.\nEarlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.\nDjango would like to thank Jiyong Yang for reporting this issue.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/django/asgiref","events":[{"introduced":"0"},{"fixed":"d97a7339524c89798c510de6c142b663fe40400c"}],"database_specific":{"extracted_events":[{"introduced":"3"},{"fixed":"3.11.1"}],"source":"AFFECTED_FIELD"}},{"type":"GIT","repo":"https://github.com/django/django","events":[{"introduced":"97aa3b7f08f51669e118f3af5ca91026e39664c3"},{"fixed":"20c71f6b91324cf401056c72136c14e0ec2bf7bf"},{"introduced":"9e7cc2b628fe8fd3895986af9b7fc9525034c1b0"},{"fixed":"4a96a199bbb1d3dca45ea16bf643216e179cb8bc"},{"introduced":"36b5f39d9372147f0e758f590e35ee2b2bc317dd"},{"fixed":"ba00558ddac694d92b05d12ecd2a5b7fcc1de025"}],"database_specific":{"cpe":"cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.2"},{"fixed":"4.2.28"},{"introduced":"5.2"},{"fixed":"5.2.11"},{"introduced":"6.0"},{"fixed":"6.0.2"}],"source":"CPE_RANGE"}}],"versions":["3.11.0","3.10.0","3.9.2","3.9.1","3.9.0","3.8.1","3.8.0","3.7.2","3.7.0","3.6.0","3.5.2","3.5.1","3.5.0","3.4.1","3.3.4","3.3.3","3.3.2","3.3.1","3.3.0","3.2.10","3.2.9","3.2.8","3.2.7","3.2.6","3.2.5","3.2.4","3.2.3","3.2.2","3.2.1","3.2.0","3.1.4","3.1.3","3.1.2","3.1.1","3.1.0","3.0.0","2.3.2","2.3.1","2.3.0","2.2.0","2.1.6","2.1.5","2.1.4","2.1.3","2.1.2","2.1.1","2.1.0","2.0.1","2.0.0","1.1.2","1.1.1","1.1.0","1.0.1","1.0.0","0.14.0","0.13.3","0.13.2","0.13.1","0.13.0","0.12.1","0.12.0","0.11.2","0.11.1","0.10.0","0.9.1","0.9","0.8","6.0.1","5.2.10","6.0","5.2.9","5.2.8","5.2.7","5.2.6","5.2.5","5.2.4","5.2.3","5.2.2","5.2.1","5.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-14550.json"}}],"references":[{"type":"WEB","url":"https://github.com/django/asgiref/"},{"type":"WEB","url":"https://github.com/django/django/"},{"type":"ADVISORY","url":"https://docs.djangoproject.com/en/dev/releases/security/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/14xxx/CVE-2025-14550.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-14550"},{"type":"ADVISORY","url":"https://www.djangoproject.com/weblog/2026/feb/03/security-releases/"},{"type":"PACKAGE","url":"https://pypi.org/project/Django/"},{"type":"PACKAGE","url":"https://pypi.org/project/asgiref/"},{"type":"ARTICLE","url":"https://groups.google.com/g/django-announce"}],"database_specific":{"cna_assigner":"DSF","cwe_ids":["CWE-407"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/14xxx/CVE-2025-14550.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}