What is CVE-2026-44029?

CVE-2026-44029 is a medium-severity vulnerability in Nixos Nix, classified under Absolute Path Traversal. CVSS score: 5.3/10. Published 2026-05-05.

How severe is CVE-2026-44029?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Path Traversal in Nixos Nix

CVE-2026-44029

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…

EPSS: 0.003 (55.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Nixos Nix — versions 2.24.7, 2.29.0, 2.30.0

Weakness classification (CWE)

CWE-36 — Absolute Path Traversal

References

cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-44029?: CVE-2026-44029 is a medium-severity vulnerability in Nixos Nix, classified under Absolute Path Traversal. CVSS score: 5.3/10. Published 2026-05-05.
How severe is CVE-2026-44029?: Medium severity. CVSS v3 base score is 5.3 out of 10.