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 qc_info plugin could be confused by a query containing embedded null bytes. Reading information_schema.query_cache_info after such a query was cached could access data beyond the end of a heap-allocated buffer, potentially disclosing adjacent memory or crashing the server. 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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
MariaDB server affected
Version Status Constraints
>= 10.6.1, < 10.6.28 affected —
>= 10.11.1, < 10.11.19 affected —
>= 11.4.1, < 11.4.13 affected —
>= 11.8.1, < 11.8.9 affected —
>= 12.3.1, < 12.3.3 affected —
>= 13.0.1, < 13.0.2 affected —

No data.

No data.

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Vendors Products
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Server Subscribe

Project Subscriptions

Vendors Products
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Server Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/MariaDB/server/commit/0931994096b84ecc9ffc8eb3517c7e09e6e8631e cve-icon cve-icon
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19 cve-icon cve-icon
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28 cve-icon cve-icon
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13 cve-icon cve-icon
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9 cve-icon cve-icon
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3 cve-icon cve-icon
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2 cve-icon cve-icon
https://github.com/MariaDB/server/security/advisories/GHSA-wfqg-88r5-55f6 cve-icon cve-icon
https://jira.mariadb.org/browse/MDEV-40670 cve-icon cve-icon
History

Fri, 09 Oct 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Mariadb
Mariadb server
Vendors & Products Mariadb
Mariadb server

Fri, 09 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Description 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 qc_info plugin could be confused by a query containing embedded null bytes. Reading information_schema.query_cache_info after such a query was cached could access data beyond the end of a heap-allocated buffer, potentially disclosing adjacent memory or crashing the server. 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.
Title MariaDB: `qc_info` plugin can do OOB reads if query contains \0
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-09T17:19:00.365Z

Reserved: 2026-10-08T21:23:59.822Z

Link: CVE-2026-107816

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-09T18:17:03.060

Modified: 2026-10-09T18:17:03.060

Link: CVE-2026-107816

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T18:30:11Z

Weaknesses