The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Nix is a package manager for Linux and other Unix systems. A bug in the fix for CVE-2024-27297 allowed for     arbitrary overwrites of files writable by the Nix process orchestrating the builds (typically the Nix     daemon running as root in multi-user installations) by following symlinks during fixed-output derivation     output registration. This affects sandboxed Linux builds - sandboxed macOS builds are unaffected. The     location of the temporary output used for the output copy was located inside the build chroot. A symlink,     pointing to an arbitrary location in the filesystem, could be created by the derivation builder at that     path. During output registration, the Nix process (running in the host mount namespace) would follow that     symlink and overwrite the destination with the derivation's output contents. In multi-user installations,     this allows all users able to submit builds to the Nix daemon (allowed-users - defaulting to all users) to     gain root privileges by modifying sensitive files. This vulnerability is fixed in 2.34.5, 2.33.4, 2.32.7,     2.31.4, 2.30.4, 2.29.3, and 2.28.6. (CVE-2026-39860)

Note that Nessus relies on the presence of the package as reported by the vendor.

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Linux Distros Unpatched Vulnerability : CVE-2026-39860

critical Nessus Plugin ID 305572

Version 1.3