CVE-2025-46416
lowpriority · track · 0EPSS 0.002 · 8 %ileEURUUSEPSS · scored 2026-10-28
The Nix, Lix, and Guix package managers allow a bypass of build isolation in which a user can elevate their privileges to the build user account (e.g., nixbld or guixbuild). This affects Nix through 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix through 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (19)
External citations — patches, advisories, analysis.
- https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017cnnvd
- https://guix.gnu.org/en/blog/2025/privilege-escalation-vulnerabilities-2025/cnnvd
- https://labs.snyk.iocnnvd
- https://lix.systems/blog/2025-06-24-lix-cves/cnnvd
- https://nixos.org/download/Patchcnnvd
- https://security-tracker.debian.org/tracker/CVE-2025-46416cnnvd
- https://security.snyk.io/vuln/?search=CVE-2025-46416cnnvd
- https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017enisa_euvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan