{"id":"UBUNTU-CVE-2026-110450","details":"Nix before 2.35.3 and Lix before 2.95.4 allow privilege escalation via a repair operation because it could destroy and then replace a store path before content verification.","modified":"2026-10-17T12:58:03.345630203Z","published":"2026-10-14T05:16:00Z","upstream":["CVE-2026-110450"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-110450"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-110450"},{"type":"REPORT","url":"https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547"}],"affected":[{"package":{"name":"nix","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/nix?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.10+dfsg1-1","2.3.10+dfsg1-1build1","2.6.0+dfsg-2","2.6.0+dfsg-3","2.6.0+dfsg-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"nix-bin","binary_version":"2.6.0+dfsg-3ubuntu0.1~esm1"},{"binary_name":"nix-setup-systemd","binary_version":"2.6.0+dfsg-3ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110450.json"}},{"package":{"name":"nix","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/nix?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.16.1+dfsg-3ubuntu1","2.18.1+dfsg-1ubuntu1","2.18.1+dfsg-1ubuntu2","2.18.1+dfsg-1ubuntu4","2.18.1+dfsg-1ubuntu5","2.18.1+dfsg-1ubuntu5+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"nix-bin","binary_version":"2.18.1+dfsg-1ubuntu5+esm2"},{"binary_version":"2.18.1+dfsg-1ubuntu5+esm2","binary_name":"nix-setup-systemd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110450.json"}},{"package":{"name":"nix","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/nix?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.34.3+dfsg-1","2.34.6+dfsg-1","2.34.6+dfsg-1build1","2.34.8+dfsg-1","2.34.8+dfsg-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.34.8+dfsg-1build1","binary_name":"nix-bin"},{"binary_name":"nix-setup-systemd","binary_version":"2.34.8+dfsg-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110450.json"}},{"package":{"name":"nix","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/nix?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.26.3+dfsg-1ubuntu4","2.26.3+dfsg-1ubuntu5","2.32.5+dfsg-1ubuntu3","2.32.5+dfsg-2ubuntu1","2.34.3+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"nix-bin","binary_version":"2.34.3+dfsg-1"},{"binary_name":"nix-setup-systemd","binary_version":"2.34.3+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110450.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}