{"id":"USN-9083-1","summary":"python-gevent vulnerability","details":"It was discovered that the gevent WSGI server incorrectly validated chunked\ntransfer encoding trailers in HTTP requests. A remote attacker could\npossibly use this issue to perform HTTP request smuggling attacks, leading\nto privilege escalation.","modified":"2026-11-13T11:28:27.332621149Z","published":"2026-11-12T20:54:27Z","related":["UBUNTU-CVE-2023-41419"],"upstream":["CVE-2023-41419","UBUNTU-CVE-2023-41419"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-9083-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-41419"}],"affected":[{"package":{"name":"python-gevent","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/python-gevent?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.0-2ubuntu0.1~esm1"}]}],"versions":["1.1~b1-0ubuntu1","1.1~b1-0ubuntu2","1.1.0-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.0-2ubuntu0.1~esm1","binary_name":"python-gevent"},{"binary_version":"1.1.0-2ubuntu0.1~esm1","binary_name":"python3-gevent"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-41419"}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}},{"package":{"name":"python-gevent","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/python-gevent?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.2-2ubuntu0.1~esm1"}]}],"versions":["1.1.2-build2","1.2.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"python-gevent","binary_version":"1.2.2-2ubuntu0.1~esm1"},{"binary_name":"python3-gevent","binary_version":"1.2.2-2ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2023-41419","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:Pro:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json"}},{"package":{"name":"python-gevent","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/python-gevent?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.0-1.2ubuntu0.1~esm1"}]}],"versions":["1.3.7-1build1","1.3.7-1ubuntu1","1.3.7-1ubuntu2","1.4.0-1","1.4.0-1.1","1.4.0-1.2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.4.0-1.2ubuntu0.1~esm1","binary_name":"python3-gevent"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:20.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2023-41419"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json"}},{"package":{"name":"python-gevent","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/python-gevent?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.8.0-1ubuntu0.1~esm1"}]}],"versions":["20.9.0-2","20.9.0-4","21.8.0-1","21.8.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"21.8.0-1ubuntu0.1~esm1","binary_name":"python3-gevent"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:22.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2023-41419"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json"}}],"schema_version":"1.9.2"}