CVE-2026-119277
Received
Received - Intake
MariaDB Connector/J Buffer Overflow Vulnerability
Vulnerability report for CVE-2026-119277, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-29
Last updated on: 2026-10-29
Assigner: GitHub, Inc.
Description
Description
MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.11, decoders for OK packet session-state blocks, column definition packets, text row data, or binary row data used server-declared lengths without confirming that the requested bytes remained in the receive buffer. The decoders could position reads, create sub-buffers, or decode strings beyond the packet boundary. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger unchecked ArrayIndexOutOfBoundsException or IllegalArgumentException failures inside JDBC calls and terminate connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mariadb-corporation | mariadb-connector-j | >= 3.0.0, < 3.3.7 |
| mariadb-corporation | mariadb-connector-j | >= 3.4.0, < 3.4.5 |
| mariadb-corporation | mariadb-connector-j | >= 3.5.0, < 3.5.11 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-130 | The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data. |
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
