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);
Published: 2026-05-05
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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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
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

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

Link: CVE-2026-44029

cve-icon Vulnrichment

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

cve-icon NVD

Status : Deferred

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

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

Link: CVE-2026-44029

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-05T03:00:10Z

Weaknesses