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CVE-2026-49261: mariadb vulnerability
CVE-2026-49261: critical vulnerability affecting mariadb. Check CVSS, KEV status, business impact and recommended administrator actions.
- CVSS
- 10.0 CRITICAL
- EPSS
- 73.32%
- Known exploited
- not in KEV
- Product
- mariadb
What is known
MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through 10.11.17, 11.4.1 through 11.4.11, 11.8.1 through 11.8.7, and 12.3.1 with `wsrep_notify_cmd` enabled would execute shell commands embedded in the name of the joiner node. This is fixed in 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. As a workaround, anyone who cannot upgrade now should disable `wsrep_notify_cmd`.
Business impact
Successful exploitation of CVE-2026-49261, a critical vulnerability (CVSS 10.0) affecting mariadb, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether mariadb is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.