PT-2026-36941 · Nix · Nix

Edef1C · Published 2026-05-05 · Updated 2026-05-05 · CVE-2026-44029

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Nix versions 2.24.7 through 2.34.6

Description A directory traversal issue allows writing to arbitrary files when using the "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" commands.

Recommendations Update to version 2.34.7 Update to version 2.33.6 Update to version 2.32.8 Update to version 2.31.5 Update to version 2.30.5 Update to version 2.29.4 Update to version 2.28.7

Fix

Weakness Enumeration

CWE-36

Related Identifiers

CVE-2026-44029

Affected Products

Nix

References · 13

• https://ubuntu.com/security/CVE-2026-44029 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-44029 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-44029 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-44029 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-44029 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-44029 · Vendor Advisory
• https://github.com/NixOS/nix/security/advisories/GHSA-gr92-w2r5-qw5p · Note
• https://twitter.com/CVEarity/status/2051562202126311831 · Twitter Post
• https://twitter.com/CVEnew/status/2051485049078354383 · Twitter Post
• https://discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix/77407 · Note
• https://twitter.com/infoflowcloud/status/2051485819689390572 · Twitter Post
• https://t.me/CVEtracker/52692 · Telegram Post
• https://openwall.com/lists/oss-security/2026/05/04/33 · Note