TI-2024-30614 Aliases CVE-2024-45593

Nix affected by unsafe NAR unpacking

MEDIUM 42CWE-22Published 2024-09-10 · Updated 2024-09-10

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Nix is a package manager for Linux and other Unix systems. A bug in Nix 2.24 prior to 2.24.6 allows a substituter or malicious user to craft a NAR that, when unpacked by Nix, causes Nix to write to arbitrary file system locations to which the Nix process has access. This will be with root permissions when using the Nix daemon. This issue is fixed in Nix 2.24.6.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00602 49th percentileScored 2026-11-07

Fix Fixed nix (NixOS): 2.24.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
NixOS	nix	2.24.0 to before 2.24.6	2.24.6	Patch available	CNA

nix VendorNixOS Affected 2.24.0 to before 2.24.6 Fixed in 2.24.6 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:nixos:nix::::::::	2.24.0 to before 2.24.6	Vulnerable	NixOS

cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:* Versions 2.24.0 to before 2.24.6 Vulnerable ·NixOS

Remediation

Fix · CNA nix (NixOS) Fixed in 2.24.6

Timeline

2026-10-02 Threatist record created from CVE-2024-45593

References

Patch 1

https://github.com/NixOS/nix/commit/eb11c1499876cd4c9c188cbda5b1003b36ce2e59

Advisory 1

https://github.com/NixOS/nix/security/advisories/GHSA-h4vv-h3jq-v493

TI-2026-28741 Nix sandbox escape: file write via symlink at FOD `.tmp` copy destination CVSS 3.1CRITICAL 9.0
TI-2019-12962 Nix through 2.3 allows local users to gain access to an arbitrary user's account because… CVSS 3.1HIGH 7.8
TI-2024-18135 Nix Corruption of fixed-output derivations CVSS 3.1MEDIUM 6.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences