---
title: "CVE-2026-110450: Nix & Lix - Privilege Escalation"
description: "Nix < 2.35.3 and Lix < 2.95.4 contain a privilege escalation caused by a repair operation that destroys and replaces a store path before content verification, letting attackers escalate privileges, exploit requires ability to trigger repair operation."
url: https://panop.io/threat-heartbeat/CVE-2026-110450/
---

# CVE-2026-110450 Nix & Lix - Privilege Escalation

Nix < 2.35.3 and Lix < 2.95.4 contain a privilege escalation caused by a repair operation that destroys and replaces a store path before content verification, letting attackers escalate privileges, exploit requires ability to trigger repair operation.

CVSS base score 8.0 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.15% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-110450)

## Details

Type

Privilege Escalation

Impact

Privilege Escalation

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-696](https://cwe.mitre.org/data/definitions/696.html)

## Vendor fix

Upgrade Nix to 2.35.3 or later and Lix to 2.95.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-110450](https://nvd.nist.gov/vuln/detail/CVE-2026-110450)
- [https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547](https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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