MariaDB server: Authorization bypass via ALTER TABLE ... CONVERT ... PARTITION

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-102523
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-05 16:17:23 UTC
Updated2026-11-06 21:29:48 UTC
DescriptionMariaDB server is a community developed fork of MySQL server. From 10.11.1 until 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, ALTER TABLE ... CONVERT ... PARTITION does not apply filename encoding to user-specified partition names before using them in filesystem path construction. An authenticated database user can use a partition name requiring filename escaping to make the conversion operate on table files the user is not authorized to access, allowing unauthorized table reads or modifications. This issue is fixed in versions 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

Risk And Classification

Primary CVSS: v3.1 8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.005620000 probability, percentile 0.470330000 (date 2026-11-08)

Problem Types: CWE-73 | CWE-73 CWE-73: External Control of File Name or Path

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
3.1CNADECLARED8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MariaDB Server affected >= 10.11.1, < 10.11.19 Not specified
CNA MariaDB Server affected >= 11.4.1, < 11.4.13 Not specified
CNA MariaDB Server affected >= 11.8.1, < 11.8.9 Not specified
CNA MariaDB Server affected >= 12.3.1, < 12.3.3 Not specified
CNA MariaDB Server affected >= 13.0.1, < 13.0.2 Not specified

References

ReferenceSourceLinkTags
github.com/MariaDB/server/security/advisories/GHSA-h4vr-wpff-jfx4 [email protected] github.com
github.com/MariaDB/server/releases/tag/mariadb-13.0.2 [email protected] github.com
github.com/MariaDB/server/commit/98437c30ae52ed709f266e5f8095d779261a5879 [email protected] github.com
jira.mariadb.org/browse/MDEV-40413 [email protected] jira.mariadb.org
github.com/MariaDB/server/releases/tag/mariadb-11.8.9 [email protected] github.com
github.com/MariaDB/server/releases/tag/mariadb-10.11.19 [email protected] github.com
github.com/MariaDB/server/releases/tag/mariadb-12.3.3 [email protected] github.com
github.com/MariaDB/server/releases/tag/mariadb-11.4.13 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report