Medium severity · published Oct 14, 2026
CVE-2026-110452
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
4.0
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NI
Nix · NixOS
before 2.28.8; 2.29.0 before 2.30.6; 2.31.0 before 2.31.6; 2.32.0 before 2.34.9; 2.35.0 before 2.35.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110452
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110452
discourse.nixos.org
https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547
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