What is CVE-2026-110452?

CVE-2026-110452 is a medium-severity vulnerability in Nixos Nix, classified under CWE-708. CVSS score: 4.0/10. Published 2026-10-14.

How severe is CVE-2026-110452?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Vulnerability in Nixos Nix

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.

Published 2026-10-14 · last modified 2026-10-14.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Nixos Nix

Weakness classification (CWE)

CWE-708

References

discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547

Frequently asked questions

What is CVE-2026-110452?: CVE-2026-110452 is a medium-severity vulnerability in Nixos Nix, classified under CWE-708. CVSS score: 4.0/10. Published 2026-10-14.
How severe is CVE-2026-110452?: Medium severity. CVSS v3 base score is 4.0 out of 10.