{"id":"USN-5812-1","summary":"python-urllib3 vulnerability","details":"It was discovered that urllib3 incorrectly handled certain characters\nin URLs. A remote attacker could possibly use this issue to cause urllib3\nto consume resources, leading to a denial of service.\n","modified":"2026-02-10T04:42:55Z","published":"2023-01-19T13:52:19Z","related":["UBUNTU-CVE-2021-33503"],"upstream":["CVE-2021-33503","UBUNTU-CVE-2021-33503"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5812-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33503"}],"affected":[{"package":{"name":"python-urllib3","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-urllib3@1.25.8-2ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.25.8-2ubuntu0.2"}]}],"versions":["1.24.1-1ubuntu1","1.24.1-1ubuntu2","1.25.8-1","1.25.8-2","1.25.8-2ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-urllib3","binary_version":"1.25.8-2ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5812-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2021-33503","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":"low"}]}]}}}],"schema_version":"1.7.3"}