CVE-2026-44171

MariaDB: path traversal in mbstream

State: Published
Severity: 6.3 Medium
Published: Jun 12, 2026
Updated: Jun 12, 2026
Reserved: May 5, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.3 Medium	CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
serverMariaDB	>= 10.6.1, < 10.6.26Affected >= 10.11.1, < 10.11.17Affected >= 11.4.1, < 11.4.11Affected >= 11.8.1, < 11.8.7Affected >= 12.3.1, < 12.3.2Affected

References

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