๐Ÿ” CVE Alert

CVE-2026-44029

MEDIUM 5.3
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th

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);

CWE CWE-36
Vendor nixos
Product nix
Published May 5, 2026
Last Updated May 5, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Affected Versions

NixOS / Nix
2.24.7 < 2.28.7 2.29.0 < 2.29.4 2.30.0 < 2.30.5 2.31.0 < 2.31.5 2.32.0 < 2.32.8 2.33.0 < 2.33.6 2.34.0 < 2.34.7

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
discourse.nixos.org: https://discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix/77407 openwall.com: https://www.openwall.com/lists/oss-security/2026/05/04/33 github.com: https://github.com/NixOS/nix/security/advisories/GHSA-gr92-w2r5-qw5p