CVE-2026-110453 Details
Description
Nix before 2.35.3, when unsandboxed on macOS or FreeBSD, incorrectly allows connections made by build users from daemon clients.
A vulnerability in Nix versions prior to 2.35.3 allows unauthorized connections from build users to daemon clients, but only when the application is running unsandboxed on macOS or FreeBSD. This could lead to privilege escalation by enabling build users to interact with system services or resources inappropriately.
Users can upgrade to Nix version 2.35.3 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 14, 2026CISA-ADP
Assessed Oct 19, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://discourse.nixos.org/t/security-advisory-for-nix-and-lix-october-2026/80547 | [email protected] | AdvisoryRemedyMailing ListVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Nix | < 2.35.3 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 19, 2026 | CVE Modified | CISA-ADP |
| Oct 14, 2026 | New CVE Received | [email protected] |