Skip to content

No restricted eval after nix-eval-jobs migration

Low
Mic92 published GHSA-j7w7-965w-vjxw Apr 15, 2025

Package

nix-eval-jobs (NixOS)

Affected versions

1.28.0

Patched versions

1.28.1

Description

Impact

Evaluation of untrusted non-flake nix code could potentially access secrets that are accessible by the hydra user/group.

This should not affect the signing keys, that are owned by the hydra-queue-runner and hydra-www users respectively.

Patches

  • nix-eval-jobs 2.28.1 allows enabling restricted-eval again
  • Hydra started configuring nix-eval-jobs for restricted evaluations in commit 8d75026

Workarounds

  • Migrate your inputs to flakes, which are evaluated purely

References

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

CVE ID

CVE-2025-32435

Weaknesses

No CWEs

Credits