CVE-2026-110449

State: Published
Severity: 7.5 High
Published: Oct 14, 2026
Updated: Oct 14, 2026
Reserved: Oct 14, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L	mitre

Weaknesses

CWE-190 Integer Overflow or Wraparound

Affected Products

Product	Versions
NixNixOS	before 2.28.8Affected 2.29.0 to before 2.30.6Affected 2.31.0 to before 2.31.6Affected 2.32.0 to before 2.34.9Affected 2.35.0 to before 2.35.3Affected

References

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

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