Fedora 42 Nix Critical Privilege Escalation Fix GHSA-g3g9-5vj6-r3gj
fedora
April 17, 2026
update to 2.31.4 fixes nix-daemon critical GHSA-g3g9-5vj6-r3gj (CVE-2026-39860) https://github.com/NixOS/nix/security/advisories/GHSA-g3g9-5vj6-r3gj
Summary
Nix is a purely functional package manager.
It allows multiple versions of a package to be installed side-by-side,
ensures that dependency specifications are complete,
supports atomic upgrades and rollbacks,
allows non-root users to install software, and has many other features.
It is the basis of the NixOS Linux distribution,
but it can be used equally well under other Unix systems.
See the README.fedora.md file for setup instructions.
Update Information:
update to 2.31.4 fixes nix-daemon critical GHSA-g3g9-5vj6-r3gj (CVE-2026-39860) https://github.com/NixOS/nix/security/advisories/GHSA-g3g9-5vj6-r3gj
Topics Covered
Change Log
* Wed Apr 8 2026 Jens Petersen
References
[ 1 ] Bug #2456893 - CVE-2026-39860 nix: privilege escalation via symlink following during output registration [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2456893
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-02fa328deb' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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Name: nix
Product: Fedora 42
Version: 2.31.4
Release: 1.fc42
Summary: A purely functional package manager
Topics Covered
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