---
title: "CVE-2026-107815: MariaDB Server - Buffer Overflow"
description: "MariaDB server 10.6.1 to 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2 contains a buffer overflow caused by incorrect boundary check in CONNECT engine's DOS table type, letting authenticated users cause crash or remote code execution, exploit requires authentication and CONNECT engine usage."
url: https://panop.io/threat-heartbeat/CVE-2026-107815/
---

# CVE-2026-107815 MariaDB Server - Buffer Overflow

MariaDB server 10.6.1 to 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2 contains a buffer overflow caused by incorrect boundary check in CONNECT engine's DOS table type, letting authenticated users cause crash or remote code execution, exploit requires authentication and CONNECT engine usage.

CVSS base score 8.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.57% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-107815)

## Details

Type

Buffer Overflow

Impact

Remote Code Execution, Denial Of Service

CVSS vector

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

Published

9 October 2026

Updated

15 October 2026

Weakness

[CWE-787](https://cwe.mitre.org/data/definitions/787.html)

## Vendor fix

Update to versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, or 13.0.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-107815](https://nvd.nist.gov/vuln/detail/CVE-2026-107815)
- [https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19](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-10.6.28)
- [https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9](https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9)
- [https://github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq](https://github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq)
- [https://github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8](https://github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8)
- [https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13](https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13)
- [https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3](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/releases/tag/mariadb-13.0.2)
- [https://jira.mariadb.org/browse/MDEV-40637](https://jira.mariadb.org/browse/MDEV-40637)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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