CVE-2026-110452: CWE-708 Incorrect Ownership Assignment in NixOS Nix
Description
CVE-2026-110452 is a vulnerability in NixOS Nix where the multi-user installer prior to version 2.35.3 incorrectly assigns ownership of store contents to the invoking user instead of root. This issue affects multiple version ranges before 2.35.3. The vulnerability has a medium severity with a CVSS score of 4.0, indicating limited impact on confidentiality and availability but potential integrity concerns.
CVSS v3.1
Score 4.0medium
Affected software
NixOS
Nix
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The multi-user installer in Nix versions before 2.35.3 sets the ownership of store contents to the user who invoked the installer rather than root, which is the intended ownership. This incorrect ownership assignment could lead to integrity issues within the system store. The affected versions include multiple disjoint ranges prior to 2.35.3 as specified.
Potential Impact
The vulnerability impacts the integrity of the system by allowing store contents to be owned by a non-root user, potentially enabling unauthorized modifications. There is no impact on confidentiality or availability according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Nix to version 2.35.3 or later where this ownership assignment issue is fixed. Since the vulnerability is patched in 2.35.3, applying this official fix remediates the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-10-14T04:12:27.246Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acf06312cdf04f6563e800e
Added to database: 10/14/2026, 04:33:53 UTC
Last enriched: 10/14/2026, 04:49:08 UTC
Last updated: 10/14/2026, 04:49:08 UTC
Views: 4
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