CVE-2026-44029

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Summary

CVECVE-2026-44029
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-05 01:16:07 UTC
Updated2026-05-05 01:16:07 UTC
DescriptionAn 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);

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem Types: CWE-36 | CWE-36 CWE-36 Absolute Path Traversal

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNACVSS5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA NixOS Nix affected 2.24.7 2.28.7 semver Not specified
CNA NixOS Nix affected 2.29.0 2.29.4 semver Not specified
CNA NixOS Nix affected 2.30.0 2.30.5 semver Not specified
CNA NixOS Nix affected 2.31.0 2.31.5 semver Not specified
CNA NixOS Nix affected 2.32.0 2.32.8 semver Not specified
CNA NixOS Nix affected 2.33.0 2.33.6 semver Not specified
CNA NixOS Nix affected 2.34.0 2.34.7 semver Not specified

References

ReferenceSourceLinkTags
github.com/NixOS/nix/security/advisories/GHSA-gr92-w2r5-qw5p [email protected] github.com
discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix... [email protected] discourse.nixos.org
www.openwall.com/lists/oss-security/2026/05/04/33 [email protected] www.openwall.com
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