CVE-2026-107815
8.5 HIGHpublic exploit availablePublished 2026-10-09 · Updated 2026-10-14
AI risk analysis
- Summary
- A buffer overflow in MariaDB's CONNECT engine allows authenticated users to write one byte past a stack buffer boundary, potentially leading to denial of service or remote code execution. This affects versions from 10.6.1 through 10.6.27, 10.11.18, 11.4.12, 11.8.8, 12.3.2, and 13.0.1.
- Exploitability
- Exploitation requires an authenticated user with access to the CONNECT engine, which is moderately difficult but possible given that the CONNECT engine is enabled by default in many MariaDB installations.
- Blast radius
- The vulnerability could affect a significant portion of MariaDB installations that use the CONNECT engine, potentially leading to widespread service disruption or unauthorized code execution on affected systems.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to MariaDB 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, or 13.0.2 immediately.
Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.
NVD 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 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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-787
Vendors
mariadb
Products
mariadb
Public exploit & PoC references
- https://github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8[Patch]
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19[Release Notes]
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28[Release Notes]
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13[Release Notes]
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9[Release Notes]
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3[Release Notes]
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2[Release Notes]
- https://github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq[Vendor Advisory]
All references
- https://github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- https://github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq
- https://jira.mariadb.org/browse/MDEV-40637
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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