MariaDB: one byte OOB write in DOS tables of the CONNECT engine

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107815
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-09 17:16:45 UTC
Updated2026-10-09 17:41:29 UTC
DescriptionMariaDB 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 CONNECT engine's DOS table type used an incorrect boundary check that permitted a one-byte null write beyond a stack buffer at an attacker-controlled offset. An authenticated user able to use the CONNECT engine could cause a crash and potentially remote code execution. 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.

Risk And Classification

Primary CVSS: v3.1 8.5 HIGH from [email protected]

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

EPSS: 0.005750000 probability, percentile 0.457870000 (date 2026-10-10)

Problem Types: CWE-787 | CWE-787 CWE-787: Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MariaDB Server affected >= 10.6.1, < 10.6.28 Not specified
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/releases/tag/mariadb-10.6.28 [email protected] github.com
github.com/MariaDB/server/releases/tag/mariadb-13.0.2 [email protected] github.com
github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq [email protected] github.com
github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8 [email protected] github.com
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
jira.mariadb.org/browse/MDEV-40637 [email protected] jira.mariadb.org
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
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