Permission Misconfigurations in Nix, Lix, and Guix Package Managers
CVE-2025-52992

3.2LOW

Key Information:

Vendor

Nixos

Status
Nix
Vendor
CVE Published:
27 June 2025

What is CVE-2025-52992?

Nix, Lix, and Guix package managers exhibit improper permissions management during build failures, potentially allowing unauthorized processes to alter the contents of a storage environment outside of the intended build sandbox. This vulnerability compromises the security model, as it could lead to privilege escalation by enabling processes to access and modify sensitive data. Updates are necessary to ensure that permissions are correctly set, mitigating risks associated with such failures.

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Affected Version(s)

Nix 0 < 2.24.15

Nix 2.25.0 < 2.26.4

Nix 2.27.0 < 2.28.4

References

https://discourse.nixos.org/t/security-advisory-privilege...
https://lix.systems/blog/2025-06-24-lix-cves/
https://guix.gnu.org/en/blog/2025/privilege-escalation-vu...

CVSS V3.1

Score:
3.2
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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