CVE-2026-44171
MediumCVSS 6.3Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
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.
Risk Assessment
The risk is that a malicious archive could allow an attacker to write files to unauthorized locations, potentially leading to a security breach.
Recommendation
It is recommended to update the MariaDB server to versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, or 12.3.2 to mitigate this vulnerability.
Other vulnerabilities in MariaDB server
See all- CVE-2026-49261Critical
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.
- 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. 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, mbstream did not check for /../ in the path when unpacking the archive. A proper backup can never contain such paths, but a specially crafted archive could have caused mbstream to create files outside of the target-dir path. This issue has been patched in versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2.