RCE in Mariadb

CVE-2026-44170

MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 to before 10.11.17, 11.4.1 to before 11.4.11, 11.8.1 to before 11.8.7, and 12.3.1, MariaDB on WIndows with installed CONNECT engine and enabled REST support interpolated table HTTP attribute into the curl command line without proper sanitizing. This allows the user to execute shell commands on the server. This issue has been patched in versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (71.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-44170: held from 0.017 to 0.013.

EPSS over last 30 days · oldest: 0.017 · newest: 0.013 · change: -0.004

Affected products

  • Mariadb — versions 12.3.1
  • Mariadb Server — versions >= 10.6.1, < 10.6.26, >= 10.11.1, < 10.11.17, >= 11.4.1, < 11.4.11

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-44170?
CVE-2026-44170 is a critical-severity vulnerability in Mariadb, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-06-12.
How severe is CVE-2026-44170?
Critical severity. CVSS v3 base score is 9.8 out of 10.