CVE-2026-61828

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

Published Jul 15, 2026 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Nixos
Nixos nixos
Vendors & Products Nixos
Nixos nixos
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title nixos/mysql : `services.mysql` is configured with insecure authentication by default when used with `mysql` or `percona-server`
Weaknesses CWE-276
References
Metrics cvssV4_0

{'score': 8.5, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 15, 2026, 4:32 PM
Reserved
Jul 10, 2026, 8:17 PM
Status
Deferred
Published
Jul 15, 2026, 4:16 PM
Modified
Oct 24, 2026, 9:10 PM