{"id":"UBUNTU-CVE-2026-35535","details":"In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.","modified":"2026-06-30T18:17:58.843581754Z","published":"2026-04-03T03:16:00Z","related":["USN-8092-1"],"upstream":["CVE-2026-35535"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-35535"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-35535"},{"type":"REPORT","url":"https://github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a4e20e8c81bb69"},{"type":"REPORT","url":"https://www.qualys.com/2026/03/10/crack-armor.txt"},{"type":"REPORT","url":"https://ubuntu.com/security/vulnerabilities/crackarmor"},{"type":"REPORT","url":"https://ubuntu.com/blog/apparmor-vulnerability-fixes-available"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8092-1"}],"affected":[{"package":{"name":"sudo","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/sudo?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.9-1ubuntu2.6"}]}],"versions":["1.9.5p2-3ubuntu2","1.9.9-1ubuntu2","1.9.9-1ubuntu2.1","1.9.9-1ubuntu2.2","1.9.9-1ubuntu2.3","1.9.9-1ubuntu2.4","1.9.9-1ubuntu2.5"],"ecosystem_specific":{"availability":"No subscription required","priority_reason":"Local privilege escalation to the root user.","binaries":[{"binary_name":"sudo","binary_version":"1.9.9-1ubuntu2.6"},{"binary_version":"1.9.9-1ubuntu2.6","binary_name":"sudo-ldap"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35535.json"}},{"package":{"name":"sudo","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/sudo?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.15p5-3ubuntu5.24.04.2"}]}],"versions":["1.9.14p2-1ubuntu1","1.9.15p5-3ubuntu1","1.9.15p5-3ubuntu3","1.9.15p5-3ubuntu4","1.9.15p5-3ubuntu5","1.9.15p5-3ubuntu5.24.04.1"],"ecosystem_specific":{"priority_reason":"Local privilege escalation to the root user.","binaries":[{"binary_version":"1.9.15p5-3ubuntu5.24.04.2","binary_name":"libnss-sudo"},{"binary_name":"sudo","binary_version":"1.9.15p5-3ubuntu5.24.04.2"},{"binary_name":"sudo-ldap","binary_version":"1.9.15p5-3ubuntu5.24.04.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35535.json"}},{"package":{"name":"sudo","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/sudo?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.17p2-1ubuntu1.1"}]}],"versions":["1.9.16p2-1ubuntu1","1.9.16p2-1ubuntu4","1.9.16p2-3ubuntu2","1.9.17p2-1ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","priority_reason":"Local privilege escalation to the root user.","binaries":[{"binary_name":"libnss-sudo","binary_version":"1.9.17p2-1ubuntu1.1"},{"binary_version":"1.9.17p2-1ubuntu1.1","binary_name":"sudo"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35535.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}