{"id":"UBUNTU-CVE-2025-14550","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. `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.","modified":"2026-02-04T19:14:16.525957Z","published":"2026-02-03T14:00:00Z","related":["USN-8009-1"],"upstream":["CVE-2025-14550"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-14550"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-14550"},{"type":"REPORT","url":"https://www.djangoproject.com/weblog/2026/feb/03/security-releases/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8009-1"}],"affected":[{"package":{"name":"python-django","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/python-django@2:3.2.12-2ubuntu1.25?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.2.12-2ubuntu1.25"}]}],"versions":["2:2.2.24-1ubuntu1","2:3.2.12-2","2:3.2.12-2ubuntu1","2:3.2.12-2ubuntu1.1","2:3.2.12-2ubuntu1.2","2:3.2.12-2ubuntu1.3","2:3.2.12-2ubuntu1.4","2:3.2.12-2ubuntu1.5","2:3.2.12-2ubuntu1.6","2:3.2.12-2ubuntu1.7","2:3.2.12-2ubuntu1.8","2:3.2.12-2ubuntu1.9","2:3.2.12-2ubuntu1.10","2:3.2.12-2ubuntu1.11","2:3.2.12-2ubuntu1.12","2:3.2.12-2ubuntu1.13","2:3.2.12-2ubuntu1.14","2:3.2.12-2ubuntu1.15","2:3.2.12-2ubuntu1.16","2:3.2.12-2ubuntu1.17","2:3.2.12-2ubuntu1.18","2:3.2.12-2ubuntu1.19","2:3.2.12-2ubuntu1.20","2:3.2.12-2ubuntu1.21","2:3.2.12-2ubuntu1.22","2:3.2.12-2ubuntu1.23","2:3.2.12-2ubuntu1.24"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:3.2.12-2ubuntu1.25","binary_name":"python3-django"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-14550.json"}},{"package":{"name":"python-django","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/python-django@3:4.2.11-1ubuntu1.14?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:4.2.11-1ubuntu1.14"}]}],"versions":["3:4.2.4-1ubuntu2","3:4.2.8-1","3:4.2.9-1","3:4.2.11-1","3:4.2.11-1ubuntu1","3:4.2.11-1ubuntu1.1","3:4.2.11-1ubuntu1.2","3:4.2.11-1ubuntu1.3","3:4.2.11-1ubuntu1.4","3:4.2.11-1ubuntu1.5","3:4.2.11-1ubuntu1.6","3:4.2.11-1ubuntu1.7","3:4.2.11-1ubuntu1.8","3:4.2.11-1ubuntu1.9","3:4.2.11-1ubuntu1.10","3:4.2.11-1ubuntu1.11","3:4.2.11-1ubuntu1.12","3:4.2.11-1ubuntu1.13"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3:4.2.11-1ubuntu1.14","binary_name":"python3-django"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-14550.json"}},{"package":{"name":"python-django","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/python-django@3:5.2.4-1ubuntu2.3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:5.2.4-1ubuntu2.3"}]}],"versions":["3:4.2.18-1ubuntu1","3:4.2.18-1ubuntu1.1","3:5.2.4-1","3:5.2.4-1ubuntu1","3:5.2.4-1ubuntu2","3:5.2.4-1ubuntu2.1","3:5.2.4-1ubuntu2.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3:5.2.4-1ubuntu2.3","binary_name":"python3-django"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-14550.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}