CVE-2024-38531

Nix sandbox escape

LOW

3.6

CVSS Score

Published: June 28, 2024 at 01:18 PM UTC

Updated: June 17, 2026 at 07:40 AM UTC

1 product affected across 1 vendorNix

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Severity

LOW3.6

Exploit prediction

EPSS 0.1%

SSVC

No known exploit

Description

Nix is a package manager for Linux and other Unix systems that makes package management reliable and reproducible. A build process has access to and can change the permissions of the build directory. After creating a setuid binary in a globally accessible location, a malicious local user can assume the permissions of a Nix daemon worker and hijack all future builds. This issue was patched in version(s) 2.23.1, 2.22.2, 2.21.3, 2.20.7, 2.19.5 and 2.18.4.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nix · Nixos

60%

v < 2.18.4v < 2.19.5v < 2.20.7v < 2.21.3v < 2.22.2v < 2.23.1

Affected range stops below 2.18.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.19.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.20.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.21.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.22.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.23.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISC

Source: [email protected]

https://github.com/NixOS/nix/pull/10501

x_refsource_CONFIRM

Source: [email protected]

https://github.com/NixOS/nix/security/advisories/GHSA-q82p-44mg-mgh5

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.6LOWGitHub_M

Attack Vector: LOCAL
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: LOW

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-278

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