{"id":"CVE-2026-110453","title":"Nix before 2.35.3, when unsandboxed on macOS or FreeBSD, incorrectly allows connections made by build users from daemon clients.","summary":"Nix before 2.35.3, when unsandboxed on macOS or FreeBSD, incorrectly allows connections made by build users from daemon clients.","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","cwe":["CWE-863"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T05:16:43.377","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110453","references":[{"url":"https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547","label":"cve@mitre.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110453.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-110453"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-110453"}],"tags":["nvd","csaf","vex","red-hat","cve.org"],"ingestedAt":"2026-10-14T06:17:13.782Z","vendor":"Red Hat","product":"Nix","affected":["Nix < 2.28.8","Nix >= 2.29.0 < 2.30.6","Nix >= 2.31.0 < 2.31.6","Nix >= 2.32.0 < 2.34.9","Nix >= 2.35.0 < 2.35.3"],"epss":0.00132,"epssPercentile":0.02731,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-19T18:33:23.046919Z"},"slug":"CVE-2026-110453","body":"## Overview\n\nNix before 2.35.3, when unsandboxed on macOS or FreeBSD, incorrectly allows connections made by build users from daemon clients.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110453.json)","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}