{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-110449", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-10-14T03:59:10.591Z", "datePublished": "2026-10-14T03:59:11.284Z", "dateUpdated": "2026-10-14T14:22:22.609Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Nix", "vendor": "NixOS", "versions": [ { "lessThan": "2.28.8", "status": "affected", "version": "0", "versionType": "semver" }, { "lessThan": "2.30.6", "status": "affected", "version": "2.29.0", "versionType": "semver" }, { "lessThan": "2.31.6", "status": "affected", "version": "2.31.0", "versionType": "semver" }, { "lessThan": "2.34.9", "status": "affected", "version": "2.32.0", "versionType": "semver" }, { "lessThan": "2.35.3", "status": "affected", "version": "2.35.0", "versionType": "semver" } ] } ], "descriptions": [ { "lang": "en", "value": "Nix before 2.35.3 and Lix before 2.95.4 have an integer overflow and resultant out-of-bounds write when evaluating untrusted expressions because list allocation is mishandled." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-10-14T04:36:26.881Z" }, "references": [ { "url": "https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547" } ], "x_generator": { "engine": "CVE-Request-form 0.0.1" }, "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.28.8" }, { "vulnerable": true, "criteria": "cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.29.0", "versionEndExcluding": "2.30.6" }, { "vulnerable": true, "criteria": "cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.31.0", "versionEndExcluding": "2.31.6" }, { "vulnerable": true, "criteria": "cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.32.0", "versionEndExcluding": "2.34.9" }, { "vulnerable": true, "criteria": "cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.35.0", "versionEndExcluding": "2.35.3" } ] } ] } ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-14T14:22:11.834069Z", "id": "CVE-2026-110449", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T14:22:22.609Z" } } ] } }