NixOS Nix up to 2.24.14/2.26.3/2.28.3/2.29.0 permission assignment

Summaryinfo

A vulnerability was found in NixOS Nix up to 2.24.14/2.26.3/2.28.3/2.29.0. It has been rated as problematic. The impacted element is an unknown function. This manipulation causes permission assignment. This vulnerability is tracked as CVE-2025-52992. The attack is restricted to local execution. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in NixOS Nix up to 2.24.14/2.26.3/2.28.3/2.29.0 and classified as problematic. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a permission assignment vulnerability. The CWE definition for the vulnerability is CWE-732. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. As an impact it is known to affect integrity. The summary by CVE is:

The Nix, Lix, and Guix package managers fail to properly set permissions when a derivation build fails. This may allow arbitrary processes to modify the content of a store outside of the build sandbox. This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

It is possible to read the advisory at discourse.nixos.org. This vulnerability is known as CVE-2025-52992 since 06/23/2025. The exploitation appears to be difficult. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.24.15, 2.26.4, 2.28.4 or 2.29.1 eliminates this vulnerability.

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Productinfo

Vendor

• NixOS

Name

• Nix

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.24.0
• 2.24.1
• 2.24.2
• 2.24.3
• 2.24.4
• 2.24.5
• 2.24.6
• 2.24.7
• 2.24.8
• 2.24.9
• 2.24.10
• 2.24.11
• 2.24.12
• 2.24.13
• 2.24.14
• 2.25
• 2.26
• 2.26.0
• 2.26.1
• 2.26.2
• 2.26.3
• 2.27
• 2.28
• 2.28.0
• 2.28.1
• 2.28.2
• 2.28.3
• 2.29.0

CPE 2.3info

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CPE 2.2info

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CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

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Entryinfo

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