HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-39860 — Nix is a package manager for Linux and other Unix systems. A bug in the fix for ...

·Source: NIST NVD

Updated:

Executive Summary

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

Analysis

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. CVSS Score: 9. Published: 2026-04-08T21:17:00.157.

Indicators of Compromise (2)

CVE (2)
CVE-2024-27297
NVDMITRE CVE
CVE-2026-39860
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Apr 8, 2026. Verified by: NIST.

Related Threats

CRITICALVulnerability

NVD CRITICAL: CVE-2026-108860 — BotSharp through 5.2.0 contains an authentication bypass vulnerability that allo...

BotSharp through 5.2.0 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to forge bearer tokens using the hard-coded Jwt:Key in WebStarter appsettings.json. Attackers can sign tokens with the committed HMAC secret and fixed botsharp issuer and audience to impersonate any known user, including administrators, on Authorize-protected API routes.

CVE-2026-108860
NIST NVD
MEDIUMVulnerability

The Luna Moth Files Weren’t Hacked. Here’s How They Leaked.

When asked about the “Luna Moth Files” that had mysteriously appeared online, Silent Ransom Group called them “fake” and insisted they hadn’t had any leak or breach. But they had. Here’s what we know. When the “Luna Moth Files” appeared on an onion site without anyone claiming responsibility or explaining their origin, DataBreaches asked a... Source

DataBreaches.net
CRITICALVulnerability

NVD CRITICAL: CVE-2026-108753 — Agnaistic agnai through 1.0.555 contains a hard-coded credentials vulnerability ...

Agnaistic agnai through 1.0.555 contains a hard-coded credentials vulnerability in self-host.docker-compose.yml, which sets a fixed admin password and public JWT secret. Unauthenticated attackers can log in as admin or sign their own JWT with admin: true to impersonate users, reset passwords, and change server configuration.

CVE-2026-108753
NIST NVD