Medium severity · published Oct 16, 2026
CVE-2026-85985
MariaDB: Unauthorized file access via CONNECT engine UDFs
5.4
CVSS
0.5%
EPSS
No
On KEV
Description
MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the CONNECT engine plugin file-access UDFs json_file(), bson_file(), jfile_make(), bfile_make(), and jbin_file() are affected because each does not enforce FILE privilege or the secure_file_priv setting. A low-privileged attacker can trigger the issue by calling a CONNECT file-access UDF with a filesystem path, then invoke a CONNECT file-access UDF to access a filesystem path and read or write files that the database account is not authorized to access, subject to operating-system permissions. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
server · MariaDB
>= 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; >= 13.0.1, < 13.0.2 · source: vendor
MA
Mariadb · Mariadb
10.6.1 before 10.6.28; 10.11.1 before 10.11.19; 11.4.1 before 11.4.13; 11.8.1 before 11.8.9; 12.3.1 before 12.3.3; 13.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85985
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85985
Patch
https://github.com/MariaDB/server/commit/4f66ca1b69daf1b7e6a562ca8e86d77a6a70abfe
Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
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