{"id":"USN-6473-1","summary":"python-urllib3 vulnerabilities","details":"It was discovered that urllib3 didn't strip HTTP Authorization header\non cross-origin redirects. A remote attacker could possibly use this \nissue to obtain sensitive information. This issue only affected\nUbuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-25091)\n\nIt was discovered that urllib3 didn't strip HTTP Cookie header on \ncross-origin redirects. A remote attacker could possibly use this \nissue to obtain sensitive information. (CVE-2023-43804)\n\nIt was discovered that urllib3 didn't strip HTTP body on status code\n303 redirects under certain circumstances. A remote attacker could \npossibly use this issue to obtain sensitive information. (CVE-2023-45803)\n","modified":"2026-04-27T16:39:59.925910Z","published":"2023-11-07T14:20:04Z","related":["UBUNTU-CVE-2018-25091","UBUNTU-CVE-2023-43804","UBUNTU-CVE-2023-45803"],"upstream":["CVE-2018-25091","CVE-2023-43804","CVE-2023-45803","UBUNTU-CVE-2018-25091","UBUNTU-CVE-2023-43804","UBUNTU-CVE-2023-45803"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6473-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-25091"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-43804"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-45803"}],"affected":[{"package":{"name":"python-urllib3","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/python-urllib3@1.13.1-2ubuntu0.16.04.4+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.1-2ubuntu0.16.04.4+esm1"}]}],"versions":["1.11-1","1.12-1","1.13.1-1","1.13.1-2","1.13.1-2ubuntu0.16.04.1","1.13.1-2ubuntu0.16.04.2","1.13.1-2ubuntu0.16.04.3","1.13.1-2ubuntu0.16.04.4"],"ecosystem_specific":{"binaries":[{"binary_name":"python-urllib3","binary_version":"1.13.1-2ubuntu0.16.04.4+esm1"},{"binary_name":"python3-urllib3","binary_version":"1.13.1-2ubuntu0.16.04.4+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2018-25091"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-43804"},{"severity":[{"score":"CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-45803"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6473-1.json"}},{"package":{"name":"python-urllib3","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/python-urllib3@1.22-1ubuntu0.18.04.2+esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.22-1ubuntu0.18.04.2+esm1"}]}],"versions":["1.21.1-1","1.22-1","1.22-1ubuntu0.18.04.1","1.22-1ubuntu0.18.04.2"],"ecosystem_specific":{"binaries":[{"binary_name":"python-urllib3","binary_version":"1.22-1ubuntu0.18.04.2+esm1"},{"binary_name":"python3-urllib3","binary_version":"1.22-1ubuntu0.18.04.2+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2018-25091"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-43804"},{"severity":[{"score":"CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-45803"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6473-1.json"}},{"package":{"name":"python-urllib3","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-urllib3@1.25.8-2ubuntu0.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.25.8-2ubuntu0.3"}]}],"versions":["1.24.1-1ubuntu1","1.24.1-1ubuntu2","1.25.8-1","1.25.8-2","1.25.8-2ubuntu0.1","1.25.8-2ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-urllib3","binary_version":"1.25.8-2ubuntu0.3"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-43804"},{"severity":[{"score":"CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-45803"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6473-1.json"}},{"package":{"name":"python-urllib3","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/python-urllib3@1.26.5-1~exp1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.5-1~exp1ubuntu0.1"}]}],"versions":["1.26.5-1~exp1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-urllib3","binary_version":"1.26.5-1~exp1ubuntu0.1"}],"availability":"No 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