NixOS Nix up to 2.35.2 Multi-User Installer privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.36+

Summaryinfo

A vulnerability classified as problematic has been found in NixOS Nix up to 2.28.7/2.30.5/2.31.5/2.34.8/2.35.2. This affects an unknown part of the component Multi-User Installer. This manipulation causes privileges management. This vulnerability is tracked as CVE-2026-110452. The attack is restricted to local execution. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in NixOS Nix up to 2.28.7/2.30.5/2.31.5/2.34.8/2.35.2. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component Multi-User Installer. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect integrity. The summary by CVE is:

The multi-user installer in Nix before 2.35.3 sets the ownership of store contents to the user (who invoked the installer) even though it should be root ownership.

It is possible to read the advisory at discourse.nixos.org. This vulnerability is known as CVE-2026-110452 since 10/14/2026. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 2.28.8, 2.30.6, 2.31.6, 2.34.9 or 2.35.3 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.0
CNA Vector (MITRE): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Nix 2.28.8/2.30.6/2.31.6/2.34.9/2.35.3

Timelineinfo

10/14/2026 Advisory disclosed
10/14/2026 +0 days CVE reserved
10/14/2026 +0 days VulDB entry created
10/14/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: discourse.nixos.org
Status: Confirmed

CVE: CVE-2026-110452 (🔒)
GCVE (CVE): GCVE-0-2026-110452
GCVE (VulDB): GCVE-100-419047

Entryinfo

Created: 10/14/2026 06:54
Changes: 10/14/2026 06:54 (63)
Complete: 🔍
Cache ID: 216::103

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