Canonical Ubuntu 18.04 LTS

• CVE-2026-15226 High 8.4 snapd snap-confine Sandbox Confinement Bypass via Omission of setuid Restriction in Seccomp Templates 0.2%
• CVE-2024-5300 Medium 5.6 AppArmor Base Profile Misconfiguration in snapd Permits Confined Snaps Unauthorized Access to Hashed Passwords via systemd-userdbd 0.1%
• CVE-2026-12391 Medium 5.0 ubuntu-pro-client Local Privilege Escalation and Information Disclosure via Symlink Arbitrary File Read in collect-logs 0.2%
• CVE-2026-11386 Critical 9.0 ubuntu-pro-client Input Validation Vulnerability Leading to Arbitrary APT Directive Injection and Remote Code Execution 0.5%
• CVE-2026-9494 Medium 5.5 ubuntu-pro-client Information Disclosure via Cleartext Bearer Token Exposure in Process Command Line 0.1%
• CVE-2026-3888 High 7.8 Local Privilege Escalation in snapd 1.4%