CVE-2026-110452 Details
Description
The multi-user installer in Nix before 2.35.3 sets the ownership of store contents to the user (who invoked the installer) even though it should be root ownership.
A local privilege escalation vulnerability has been identified in Nix versions prior to 2.35.3. The issue arises in the multi-user installer, which incorrectly assigns ownership of store contents to the user who initiated the installation, rather than the appropriate root ownership. This misallocation of ownership can lead to unauthorized access or modifications of files that should be restricted.
Users can upgrade to Nix version 2.35.3 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 14, 2026CISA-ADP
Assessed Oct 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547 | [email protected] | AdvisoryMailing ListRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-708 | Incorrect Ownership Assignment | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Nix | < 2.35.3 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 14, 2026 | CVE Modified | CISA-ADP |
| Oct 14, 2026 | New CVE Received | [email protected] |