CVE-2026-110452
The multi-user installer in Nix before 2.35.3 sets the ownership of store contents to the user (who invoked the installer) even though it should be root ownership.
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nix vulnerabilities
Vulnerabilities published for nix in the last 30 days: 4. Listed in the KEV catalogue: 0.
Vulnerabilities: 9
CVE-2026-110451
Nix before 2.35.3 and Lix before 2.95.4 on macOS allow a Seatbelt sandbox escape (for an unconfined build) because a certain size threshold is mishandled.
Published UpdatedCVE-2026-110450
Nix before 2.35.3 and Lix before 2.95.4 allow privilege escalation via a repair operation because it could destroy and then replace a store path before content verification.
Published UpdatedCVE-2026-110449
Nix before 2.35.3 and Lix before 2.95.4 have an integer overflow and resultant out-of-bounds write when evaluating untrusted expressions because list allocation is mishandled.
Published UpdatedNix: Arbitrary file truncation outside the sandbox with recursive-nix experimental feature
Nix is a package manager for Linux and other Unix systems. Prior to 2.35.0, a malicious derivation executed with the recursive-nix experimental feature can exploit a time-of-check/time-of-use race involving final symlink handling in the LocalStore restore path. The race can cause writeFile to follow a substituted final symlink when opening a path with O_TRUNC instead of enforcing FinalSymlink::DontFollow, allowing the Nix process or nix-daemon to create or truncate an empty file outside the build sandbox with the daemon user's permissions. The primitive does not provide arbitrary-content writes and requires winning the race. This issue is fix
Published UpdatedCVE-2026-44029
An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 (introduced in 2.24.7);
Published UpdatedCVE-2026-44028
An issue was discovered in Nix before 2.34.7 and Lix before 2.95.2. Unbounded recursion in the NAR (Nix Archive) parser could lead to a stack-to-heap overflow when the parser is run on a coroutine stack. The stack is allocated without a guard page, which means that a stack overflow could overwrite memory on the heap and could allow arbitrary code execution as the Nix daemon (run as root in multi-user installations) if ASLR hardening is bypassed. This can be exploited by all users able to connect to the daemon (e.g., in Nix, this is configurable via the allowed-users setting, defaulting to all users). The fixed versions are 2.34.7, 2.33.6, 2.3
Published UpdatedNix sandbox escape: file write via symlink at FOD `.tmp` copy destination
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 regi
Published UpdatedCVE-2024-36050
Nix through 2.22.1 mishandles certain usage of hash caches, which makes it easier for attackers to replace current source code with attacker-controlled source code by luring a maintainer into accepting a malicious pull request.
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