CVE-2026-107817: CWE-125: Out-of-bounds Read in MariaDB server
Description
A vulnerability in the MariaDB server's mysql_json plugin allows out-of-bounds reads when processing specially crafted MySQL tables with invalid binary JSON data. This can lead to information disclosure or server crashes. The issue affects multiple MariaDB versions starting from 10.6.1 up to but not including fixed versions such as 10.6.28 and others. The vulnerability has a medium severity score and has been addressed in specific patched versions.
CVSS v3.1
Score 4.4medium
Affected software
MariaDB
server
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-107817 is an out-of-bounds read vulnerability (CWE-125) in the MariaDB server's mysql_json plugin. The plugin incorrectly assumes that imported MySQL tables contain valid MySQL binary JSON data. If a specially crafted MySQL table contains invalid JSON data, this assumption leads to out-of-bounds reads, potentially causing information disclosure or a server crash. The vulnerability affects MariaDB server versions >=10.6.1 <10.6.28, >=10.11.1 <10.11.19, >=11.4.1 <11.4.13, >=11.8.1 <11.8.9, >=12.3.1 <12.3.3, and >=13.0.1 <13.0.2. Fixed versions include 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Potential Impact
Successful exploitation can lead to out-of-bounds reads, which may cause information disclosure or a denial-of-service condition via server crash. The CVSS v3.1 base score is 4.4 (medium severity), reflecting local attack vector, low complexity, no privileges required, user interaction required, unchanged scope, low confidentiality impact, no integrity impact, and low availability impact.
Mitigation Recommendations
Fixed versions are available for all affected release series: 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2. Users should upgrade to these versions or later to remediate the vulnerability. No additional vendor advisory content is provided, so patch status is confirmed by the stated fixed versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-08T21:23:59.823Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac9291a2cdf04f656733be9
Added to database: 10/09/2026, 17:49:14 UTC
Last enriched: 10/09/2026, 18:03:51 UTC
Last updated: 10/09/2026, 18:57:31 UTC
Views: 6
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