Buffer overflow in Mariadb Server
CVE-2026-107815
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Mariadb Server — versions >= 10.11.1, < 10.11.19, >= 10.6.1, < 10.6.28, >= 11.4.1, < 11.4.13
Weakness classification (CWE)
References
- github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq
- github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8
- github.com/MariaDB/server/releases/tag/mariadb-10.11.19
- github.com/MariaDB/server/releases/tag/mariadb-10.6.28
- github.com/MariaDB/server/releases/tag/mariadb-11.4.13
- github.com/MariaDB/server/releases/tag/mariadb-11.8.9
- github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- jira.mariadb.org/browse/MDEV-40637
Frequently asked questions
- What is CVE-2026-107815?
- CVE-2026-107815 is a high-severity vulnerability in Mariadb Server, classified under Out-of-bounds Write. CVSS score: 8.5/10. Published 2026-10-09.
- How severe is CVE-2026-107815?
- High severity. CVSS v3 base score is 8.5 out of 10.