CVE-2026-61828CWE-276

nixos/mysql : `services.mysql` is configured with insecure authentication by default when used with `mysql` or `percona-server`

High · published July 15, 2026

CVSS v4.0
8.5
EPSS
0%
Percentile
4.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.5 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00153 · 4.1th percentile
Weakness
CWE-276 · Incorrect Default Permissions
Published
2026-07-15T14:52Z
EPSS history
Timeline
  • 15 JUL 14:52Z
    nixos/mysql : `services.mysql` is configured with insecure authentication by default when used with `mysql` or `percona-server`
    cvelistv5