8.5 HIGH
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Local (L)
- Attack Complexity (AC): Low (L)
- Attack Requirement (AT): None (N)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Vulnerable System Impact Confidentiality (VC): High (H)
- Vulnerable System Impact Integrity (VI): High (H)
- Vulnerable System Impact Availability (VA): High (H)
- Subsequent System Impact Confidentiality (SC): None (N)
- Subsequent System Impact Integrity (SI): None (N)
- Subsequent System Impact Availability (SA): None (N)
- Modified Attack Vector (MAV): Local (L)
- Modified Attack Complexity (MAC): Low (L)
- Modified Attack Requirement (MAT): None (N)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Vulnerable System Impact Confidentiality (MVC): High (H)
- Modified Vulnerable System Impact Integrity (MVI): High (H)
- Modified Vulnerable System Impact Availability (MVA): High (H)
- Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
- Modified Subsequent System Impact Integrity (MSI): Negligible (N)
- Modified Subsequent System Impact Availability (MSA): Negligible (N)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
Activity log
- Created suggestion
nixos/mysql : `services.mysql` is configured with insecure authentication by default when used with `mysql` or `percona-server`
Nixpkgs is a collection of software packages that can be installed with the Nix package manager. Prior to the 25.11 and 26.05 channel fixes, the NixOS module for MySQL services.mysql initializes the MySQL database in a way that allows local users, such as unprivileged web or CGI processes on the same host, to log in as the root user without a password when the service is used with mysql or percona-server. This issue is fixed in the 25.11 and 26.05.
References
-
https://github.com/NixOS/nixpkgs/security/advisories/GHSA-6qxx-6rg8-c4p8 x_refsource_CONFIRM
-
https://github.com/NixOS/nixpkgs/pull/534254 x_refsource_MISC
-
https://github.com/NixOS/nixpkgs/pull/534482 x_refsource_MISC
-
https://github.com/NixOS/nixpkgs/pull/534484 x_refsource_MISC
Affected products
- ==>= 26.05-beta, < 26.05
- ==< 25.11
Matching in nixpkgs
pkgs.metrics
Metrics tracked by Hydra about Nixpkgs
pkgs.tarball
Source distribution
-
nixos-unstable -
- nixos-unstable-small 26.11pre1234.abcdef
-
nixos-26.05 -
- nixos-26.05-small 26.05pre1234.abcdef
pkgs.unstable
Release-critical builds for the Nixpkgs unstable channel
-
nixos-unstable -
- nixos-unstable-small 26.11pre1234.abcdef
-
nixos-26.05 -
- nixos-26.05-small 26.05pre1234.abcdef
pkgs.nixpkgs-fmt
Nix code formatter for nixpkgs
pkgs.nixpkgs-vet
Tool to vet (check) Nixpkgs, including its pkgs/by-name directory
pkgs.nixpkgs-lint
A utility for Nixpkgs contributors to check Nixpkgs for common errors
pkgs.darwin-tested
Release-critical builds for the Nixpkgs darwin channel
-
nixos-unstable -
- nixos-unstable-small 26.11pre1234.abcdef
-
nixos-26.05 -
- nixos-26.05-small 26.05pre1234.abcdef
pkgs.dhall-nixpkgs
Convert Dhall projects to Nix packages
pkgs.nixpkgs-track
Track where Nixpkgs pull requests have reached
pkgs.nixpkgs-manual
None
pkgs.nixpkgs-review
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.release-checks
None
pkgs.nixpkgs-pytools
Tools for removing the tedious nature of creating nixpkgs derivations
pkgs.nixpkgs-hammering
Set of nit-picky rules that aim to point out and explain common mistakes in nixpkgs package pull requests
-
nixos-unstable -
- nixos-unstable-small 0-unstable-2026-04-21
-
nixos-26.05 -
- nixos-26.05-small 0-unstable-2025-09-10
pkgs.nixpkgs-reviewFull
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.nixpkgs-lint-community
Fast semantic linter for Nix using tree-sitter
pkgs.nixpkgs-openjdk-updater
Updater for Nixpkgs OpenJDK packages
pkgs.haskellPackages.dhall-nixpkgs
Convert Dhall projects to Nix packages
pkgs.lixPackageSets.git.nixpkgs-review
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.python313Packages.nixpkgs-pytools
Tools for removing the tedious nature of creating nixpkgs derivations
pkgs.python314Packages.nixpkgs-pytools
Tools for removing the tedious nature of creating nixpkgs derivations
pkgs.haskellPackages.distribution-nixpkgs
Types and functions to manipulate the Nixpkgs distribution
pkgs.lixPackageSets.latest.nixpkgs-review
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.lixPackageSets.stable.nixpkgs-review
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.lixPackageSets.git.nixpkgs-reviewFull
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.lixPackageSets.lix_2_94.nixpkgs-review
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.lixPackageSets.lix_2_95.nixpkgs-review
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.python313Packages.nixpkgs-plugin-update
Library for updating plugin collections in Nixpkgs
pkgs.python314Packages.nixpkgs-plugin-update
Library for updating plugin collections in Nixpkgs
pkgs.lixPackageSets.latest.nixpkgs-reviewFull
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.lixPackageSets.stable.nixpkgs-reviewFull
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.lixPackageSets.lix_2_94.nixpkgs-reviewFull
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.lixPackageSets.lix_2_95.nixpkgs-reviewFull
Review pull-requests on https://github.com/NixOS/nixpkgs
pkgs.python313Packages.nixpkgs-updaters-library
Boilerplate-less updater library for Nixpkgs ecosystems
pkgs.python314Packages.nixpkgs-updaters-library
Boilerplate-less updater library for Nixpkgs ecosystems
pkgs.haskellPackages.distribution-nixpkgs-unstable
Types and functions to manipulate the Nixpkgs distribution
-
nixos-unstable -
- nixos-unstable-small 1.7.1.1-unstable-2026-03-30
-
nixos-26.05 -
- nixos-26.05-small 1.7.1.1-unstable-2026-03-30
Package maintainers
-
@Gabriella439 Gabriella Gonzalez <GenuineGabriella@gmail.com>
-
@sternenseemann Lukas Epple <sternenseemann@systemli.org>
-
@Mic92 Jörg Thalheim <joerg@thalheim.io>
-
@mdaniels5757 Michael Daniels <nix@mdaniels.me>
-
@figsoda figsoda <figsoda@pm.me>
-
@zimbatm zimbatm <zimbatm@zimbatm.com>
-
@iamanaws Angel J <iamanaws@httpd.dev>
-
@Artturin Artturi N <artturin@artturin.com>
-
@emilazy Emily <nixpkgs@emily.moe>
-
@isabelroses Isabel Roses <isabel@isabelroses.com>
-
@uncenter uncenter <uncenter@uncenter.dev>
-
@matthiasbeyer Matthias Beyer <mail@beyermatthias.de>
-
@MattSturgeon Matt Sturgeon <matt@sturgeon.me.uk>
-
@philiptaron Philip Taron <philip.taron@gmail.com>
-
@willbush Will Bush <git@willbush.dev>
-
@zowoq zowoq
-
@teto Matthieu Coudron <mcoudron@hotmail.com>
-
@PerchunPak Perchun Pak <nixpkgs@perchun.it>
-
@khaneliman Austin Horstman <khaneliman12@gmail.com>