Incorrect authorization in MariaDB - CVE-2026-44173
Published: May 19, 2026
Vulnerability identifier: #VU131783
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-44173
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Debian
Affected software:
MariaDB
MariaDB
Detailed vulnerability description
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to incorrect authorization in SELECT ... INTO OUTFILE and SELECT ... INTO DUMPFILE handling when processing queries whose FROM clause contains only subqueries. A remote user can execute a crafted query to cause a denial of service.
The issue occurs because the FILE privilege is not verified in this query pattern.
How to mitigate CVE-2026-44173
Install security update from vendor's website.