CVE-2026-110449

EUVD-2026-100802
Nix before 2.35.3 and Lix before 2.95.4 have an integer overflow and resultant out-of-bounds write when evaluating untrusted expressions because list allocation is mishandled.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mitreCNA
7.5 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 15.04%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
nixosnix
𝑥
< 2.28.8
CNA
nixosnix
2.29.0 ≤
𝑥
< 2.30.6
CNA
nixosnix
2.31.0 ≤
𝑥
< 2.31.6
CNA
nixosnix
2.32.0 ≤
𝑥
< 2.34.9
CNA
nixosnix
2.35.0 ≤
𝑥
< 2.35.3
CNA
Debian logo
Debian Releases
Debian Product
Codename
nix
bookworm
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
Common Weakness Enumeration
References
https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547