{"id":"USN-8751-1","summary":"urwid vulnerabilities","details":"Katriel Moses discovered that Urwid used a weak PRNG. A local attacker\ncould possibly use this issue to cause a denial of service or execute\narbitrary code.","modified":"2026-09-14T11:27:33.300781941Z","published":"2026-09-14T03:34:34Z","related":["UBUNTU-CVE-2026-9323"],"upstream":["CVE-2026-9323","UBUNTU-CVE-2026-9323"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8751-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-9323"}],"affected":[{"package":{"name":"urwid","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/urwid?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.1-2ubuntu0.1~esm1"}]}],"versions":["1.3.1-2ubuntu2","2.0.1-2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.0.1-2ubuntu0.1~esm1","binary_name":"python-urwid"},{"binary_version":"2.0.1-2ubuntu0.1~esm1","binary_name":"python3-urwid"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-9323","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json"}},{"package":{"name":"urwid","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/urwid?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.1-3ubuntu0.1~esm1"}]}],"versions":["2.0.1-2build2","2.0.1-2build3","2.0.1-2build4","2.0.1-3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.0.1-3ubuntu0.1~esm1","binary_name":"python3-urwid"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-9323"}],"ecosystem":"Ubuntu:Pro:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json"}},{"package":{"name":"urwid","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/urwid?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.2-2ubuntu0.1"}]}],"versions":["2.1.2-1build1","2.1.2-1build3","2.1.2-2","2.1.2-2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.1.2-2ubuntu0.1","binary_name":"python3-urwid"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2026-9323","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"score":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"urwid","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/urwid?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.4-1ubuntu0.1~esm1"}]}],"versions":["2.6.16-1","3.0.4-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.4-1ubuntu0.1~esm1","binary_name":"python3-urwid"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:26.04:LTS","cves":[{"id":"CVE-2026-9323","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json"}}],"schema_version":"1.9.0"}