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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0015.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
NixOS Nix unaffected
Version Status Constraints
0 affected < 2.28.8
2.29.0 affected < 2.30.6
2.31.0 affected < 2.31.6
2.32.0 affected < 2.34.9
2.35.0 affected < 2.35.3

No data.

No data.

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No data.

Project Subscriptions

Vendors Products
Nixos Subscribe
Nix Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547 cve-icon cve-icon
History

Wed, 14 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Repair Operation in Nix and Lix

Wed, 14 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
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.
First Time appeared Nixos
Nixos nix
Weaknesses CWE-696
CPEs cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*
Vendors & Products Nixos
Nixos nix
References
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-14T04:03:12.768Z

Reserved: 2026-10-14T04:03:11.878Z

Link: CVE-2026-110450

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-14T05:16:42.917

Modified: 2026-10-14T05:16:42.917

Link: CVE-2026-110450

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-14T17:15:05Z

Weaknesses