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Known vulnerabilities in Canonical Ubuntu 26.04 LTS

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CVE Summary Score Published
CVE-2026-8933 A local privilege escalation vulnerability exists in snap-confine, a set-capabilities core component used internally… 7.8 High Jul 21, 2026
CVE-2026-15226 A sandbox confinement bypass vulnerability exists in Canonical snapd within its internal execution environment… 8.4 High Jul 21, 2026
CVE-2024-5300 An access control bypass and information disclosure vulnerability exists in the base AppArmor security profile… 5.6 Medium Jul 21, 2026
CVE-2026-12391 An insecure symlink following vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools)… 5.0 Medium Jul 16, 2026
CVE-2026-11386 An input validation and injection vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools) 9.0 Critical Jul 16, 2026
CVE-2026-9494 An information disclosure vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools) 5.5 Medium Jul 16, 2026
CVE-2026-12249 An issue was discovered in Canonical ADSys upstream versions through v0.16.2 8.3 High Jun 22, 2026

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