Bug 2559804

Summary: CVE-2026-97380 mariadb10.11: mariadb: Privilege escalation via empty password in GRANT PROXY statement [fedora-all]
Product: [Fedora] Fedora Reporter: Lukas Javorsky <ljavorsk>
Component: mariadb10.11Assignee: Michal Schorm <mschorm>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: db-sig, mschorm, psloboda
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["faff033f-1afd-4c75-8da7-364ea6d5a47d"]}
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Bug Blocks: 2554198    

Description Lukas Javorsky 2026-10-23 13:43:05 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the GRANT PROXY statement treats an IDENTIFIED clause with an empty password as though authentication were not specified, causing it to check the wrong grantor privileges. A low-privileged attacker who can name another account can exploit this authorization error to set that account's password. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.