Bug 2488460 (CVE-2026-44173)

Summary: CVE-2026-44173 mariadb: MariaDB: Privilege bypass allows unauthorized file write via subqueries
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in MariaDB server. This vulnerability allows a low-privileged authenticated user to bypass a security control that normally restricts file operations. Specifically, the system failed to verify the necessary 'FILE' privilege when certain 'SELECT' statements, which write data to files, were executed with subqueries in their 'FROM' clause. This could enable an attacker to write unauthorized files to the server's file system, potentially leading to the disclosure of sensitive information or a denial of service by corrupting or filling disk space.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2494790, 2494794    
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Description OSIDB Bzimport 2026-06-12 18:01:58 UTC 
MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 to before 10.11.17, 11.4.1 to before 11.4.11, 11.8.1 to before 11.8.7, and 12.3.1, MariaDB allowed SELECT ... INTO OUTFILE and SELECT ... INTO DUMPFILE without verifying the FILE privilege if the FROM clause contained only subqueries. This issue has been patched in versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2.
Comment 2 errata-xmlrpc 2026-08-03 03:42:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:49522 https://access.redhat.com/errata/RHSA-2026:49522