CVE-2026-44029 - Vulnerability Details - OpenCVE

ReportizFlow

An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 (introduced in 2.24.7);

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Nixos	Nix

No data.

No data.

References

Link	Providers
https://discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix/77407
https://github.com/NixOS/nix/security/advisories/GHSA-gr92-w2r5-qw5p
https://www.openwall.com/lists/oss-security/2026/05/04/33

History

Tue, 05 May 2026 13:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 05 May 2026 03:00:00 +0000

Type	Values Removed	Values Added
Title		Directory Traversal in Nix Prefetch Commands Allowing Local Arbitrary File Write

Tue, 05 May 2026 01:15:00 +0000

Type	Values Removed	Values Added
Description		An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 (introduced in 2.24.7);
First Time appeared		Nixos Nixos nix
Weaknesses		CWE-36
CPEs		cpe:2.3:a:nixos:nix::::::::
Vendors & Products		Nixos Nixos nix
References		https://discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix/77407 https://github.com/NixOS/nix/security/advisories/GHSA-gr92-w2r5-qw5p https://www.openwall.com/lists/oss-security/2026/05/04/33
Metrics		cvssV3_1 `{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-05-05T00:51:05.533Z

Updated: 2026-05-05T12:43:28.239Z

Reserved: 2026-05-05T00:51:05.139Z

Link: CVE-2026-44029

Vulnrichment

Updated: 2026-05-05T12:43:23.712Z

NVD

Status : Deferred

Published: 2026-05-05T01:16:07.170

Modified: 2026-05-05T19:47:31.297

Link: CVE-2026-44029

Redhat

No data.

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