Buffer Overflow Affecting MariaDB/server package, versions [11.1.1, 11.4.10)[11.5.0, 11.8.6)[12.0.1, 12.2.2)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.1% (27th percentile)

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  • Snyk IDSNYK-UNMANAGED-MARIADBSERVER-15762223
  • published24 Mar 2026
  • disclosed20 Mar 2026
  • creditTeam Xint Code

Introduced: 20 Mar 2026

CVE-2026-32710  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade MariaDB/server to version 11.4.10, 11.8.6, 12.2.2 or higher.

Overview

Affected versions of this package are vulnerable to Buffer Overflow in the json_get_normalized_string() function used by JSON_SCHEMA_VALID(). An authenticated user can cause a server crash (which may be escalable to code execution) by providing an excessively long enum as input to this function.

PoC

select json_schema_valid('{"enum":[0]}', sformat('"{:#>200}"','0'));

CVSS Base Scores

version 4.0
version 3.1