CVE-2026-49261
CriticalCVSS 10.0Exploitation Probability (EPSS)
Elevated risk73th percentile - higher than 73% of all known CVEs
Summary
A vulnerability in MariaDB Server allows execution of arbitrary shell commands embedded in the joiner node name when `wsrep_notify_cmd` is enabled. Affected 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.
Risk Assessment
An attacker can take over the database server by injecting malicious commands into the node name, leading to full system compromise and potential data breach.
Recommendation
Upgrade MariaDB to versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, or 12.3.2 immediately. If upgrade is not possible, disable `wsrep_notify_cmd`.
Other vulnerabilities in MariaDB Server
See all- CVE-2026-44171Medium
MariaDB server versions from 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 had an issue with not checking for /../ in the path when unpacking the archive. A specially crafted archive could have caused mbstream to create files outside of the target-dir path.
- CVE-2026-44169Medium
In MariaDB versions from 11.4.1 to before 11.4.11, 11.8.1 to before 11.8.7, and 12.3.1, a user with EXECUTE access to a stored routine could see the routine definition even without SHOW CREATE ROUTINE privilege. This issue has been patched in versions 11.4.11, 11.8.7, and 12.3.2.
- CVE-2026-35549Medium
In MariaDB Server before versions 11.4.10, 11.5.x-11.8.x before 11.8.6, and 12.x before 12.2.2, a vulnerability was found where a large packet can crash the server if the caching_sha2_password authentication plugin is installed and some user accounts are configured to use it. The issue is due to alloca usage in sha256_crypt_r.
Original NVD description (English source)
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`.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS