CVE-2026-110449

Integer Overflow Leading to Out-of-Bounds Write in Nix and Lix

Published Oct 14, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Integer Overflow Leading to Out-of-Bounds Write in Nix and Lix
Type Values Removed Values Added
Title Integer Overflow and Out-of-Bounds Write in Nix and Lix During Untrusted Expression Evaluation
Type Values Removed Values Added
Title Integer Overflow and Out-of-Bounds Write in Nix and Lix During Untrusted Expression Evaluation
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Nixos
Nixos nix
CPEs cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*
Vendors & Products Nixos
Nixos nix
Type Values Removed Values Added
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.
Weaknesses CWE-190
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 14, 2026, 2:22 PM
Reserved
Oct 14, 2026, 3:59 AM
Status
Deferred
Published
Oct 14, 2026, 4:18 AM
Modified
Oct 16, 2026, 7:56 PM