CVE-2026-110452 Privilege escalation in Nix
The Nix multi-user installer incorrectly assigns store ownership to the invoking user instead of root, potentially allowing privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-110452?
CVE-2026-110452 is a medium-severity vulnerability in NixOS Nix, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-708
Which versions are affected by CVE-2026-110452?
How do I fix CVE-2026-110452?
No fix has been published for CVE-2026-110452 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-110452 being exploited?
There is no known exploitation of CVE-2026-110452 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-110452, GHSA-ggvw-xgw8-9cc9, UBUNTU-CVE-2026-110452.