{"id":"USN-8578-1","summary":"CUPS vulnerability","details":"It was discovered that CUPS did not properly filter control characters in IPP string attributes and PPD keywords. An unauthenticated attacker could exploit this to execute arbitrary code as the lp user on systems with shared target queues.","modified":"2026-07-21T23:14:34.729114987Z","published":"2026-07-21T12:57:09Z","related":["UBUNTU-CVE-2026-34980"],"upstream":["CVE-2026-34980","UBUNTU-CVE-2026-34980"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8578-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-34980"}],"affected":[{"package":{"name":"cups","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/cups?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.3-4ubuntu0.11+esm13"}]}],"versions":["2.1.0-4ubuntu3","2.1.0-5","2.1.0-6","2.1.0-6ubuntu1","2.1.0-7","2.1.2-1","2.1.2-2","2.1.3-1","2.1.3-1build1","2.1.3-3","2.1.3-4","2.1.3-4ubuntu0.2","2.1.3-4ubuntu0.3","2.1.3-4ubuntu0.4","2.1.3-4ubuntu0.5","2.1.3-4ubuntu0.6","2.1.3-4ubuntu0.7","2.1.3-4ubuntu0.8","2.1.3-4ubuntu0.9","2.1.3-4ubuntu0.10","2.1.3-4ubuntu0.11","2.1.3-4ubuntu0.11+esm1","2.1.3-4ubuntu0.11+esm2","2.1.3-4ubuntu0.11+esm3","2.1.3-4ubuntu0.11+esm4","2.1.3-4ubuntu0.11+esm5","2.1.3-4ubuntu0.11+esm6","2.1.3-4ubuntu0.11+esm7","2.1.3-4ubuntu0.11+esm8","2.1.3-4ubuntu0.11+esm9","2.1.3-4ubuntu0.11+esm11","2.1.3-4ubuntu0.11+esm12"],"ecosystem_specific":{"binaries":[{"binary_name":"cups","binary_version":"2.1.3-4ubuntu0.11+esm13"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"cups-bsd"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"cups-client"},{"binary_name":"cups-common","binary_version":"2.1.3-4ubuntu0.11+esm13"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"cups-core-drivers"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"cups-daemon"},{"binary_name":"cups-ipp-utils","binary_version":"2.1.3-4ubuntu0.11+esm13"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"cups-ppdc"},{"binary_name":"cups-server-common","binary_version":"2.1.3-4ubuntu0.11+esm13"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"libcups2"},{"binary_name":"libcupscgi1","binary_version":"2.1.3-4ubuntu0.11+esm13"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"libcupsimage2"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"libcupsmime1"},{"binary_version":"2.1.3-4ubuntu0.11+esm13","binary_name":"libcupsppdc1"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-34980"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8578-1.json"}}],"schema_version":"1.7.5"}