{"id":"USN-7503-1","summary":"python-h11 vulnerability","details":"Jeppe Bonde Weikop discovered that h11 incorrectly handled crafted HTTP\nrequests. A remote attacker could possibly use this issue to smuggle\nmalicious HTTP requests, which could potentially lead to security\ncontrol bypass and information leakage.","modified":"2026-02-10T04:48:36Z","published":"2025-05-08T10:53:58Z","related":["UBUNTU-CVE-2025-43859"],"upstream":["CVE-2025-43859","UBUNTU-CVE-2025-43859"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7503-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-43859"}],"affected":[{"package":{"name":"python-h11","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/python-h11@0.14.0-1ubuntu0.24.04.1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.14.0-1ubuntu0.24.04.1"}]}],"versions":["0.14.0-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-h11","binary_version":"0.14.0-1ubuntu0.24.04.1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"id":"CVE-2025-43859","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7503-1.json"}}],"schema_version":"1.7.3"}