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CVE

CVE-2026-32710

Heap-based Buffer Overflow in MariaDB
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CVE

CVE-2026-32710

Heap-based Buffer Overflow in MariaDB

MariaDB server is a community developed fork of MySQL server. An authenticated user can crash MariaDB versions 11.4 before 11.4.10 and 11.8 before 11.8.6 via a bug in JSONSCHEMAVALID() function. Under certain conditions it might be possible to turn the crash into a remote code execution. These conditions require tight control over memory layout which is generally only attainable in a lab environment. This issue is fixed in MariaDB 11.4.10, MariaDB 11.8.6, and MariaDB 12.2.2.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.5
-
3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://jira.mariadb.org/browse/MDEV-38356, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32710.json, https://github.com/MariaDB/server/security/advisories/GHSA-4rj5-2227-9wgc, https://nvd.nist.gov/vuln/detail/CVE-2026-32710

Severity

8.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.5
EPSS Probability
0.00098%
EPSS Percentile
0.26694%
Introduced Version
fa69b085b10f19a3a8b6e7adab27c104924333ae,1c4aed7c680c0402d6e97e097f03815c0e9bf4c5,70117463f032d59f8e328335e19b59157d34cf07,0,11.4.1,11.8.1
Fix Available
054a893f1645b77e52a329a7fc8cf614eebd1fad,9bfea48ce1214cc4470f6f6f8a4e30352cef84e7,d26a6f44c1f2119377e79a9540886c6d8c01472f,3:11.8.6-2.module+el9.8.0+24146+e179c349,0:26.4.25-1.module+el9.8.0+24146+e179c349,1:11.8.6-0+deb13u1,11.4.10,11.8.6

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