CVE-2026-110450

Full vulnerability record from the local CVENow database.

Description

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.

Severity

HIGH

CVSS score

8.0 (v3.1)

Vulnerability status

Deferred

Source identifier

[email protected]

Published

2026-10-14 05:16:42.917000

Last modified

2026-10-19 20:17:52.023000

View original CVE JSON

{
  "id": "CVE-2026-110450",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-14T05:16:42.917",
  "lastModified": "2026-10-19T20:17:52.023",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "NixOS",
          "product": "Nix",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThan": "2.28.8",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.29.0",
              "lessThan": "2.30.6",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.31.0",
              "lessThan": "2.31.6",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.32.0",
              "lessThan": "2.34.9",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.35.0",
              "lessThan": "2.35.3",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
          "baseScore": 8.0,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-19T19:03:38.040394Z",
          "id": "CVE-2026-110450",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-696"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547",
      "source": "[email protected]"
    }
  ]
}