CVE-2026-44171 Details
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.
A path traversal vulnerability has been identified in the MariaDB server mbstream utility, affecting versions 10.6.1 prior to 10.6.26, 10.11.1 prior to 10.11.17, 11.4.1 prior to 11.4.11, 11.8.1 prior to 11.8.7, and 12.3.1. The vulnerability arises because mbstream did not properly validate paths when unpacking archives, allowing specially crafted files to be extracted outside the designated target directory. While legitimate backups should not contain such path manipulations, this flaw could be exploited to create files in unintended locations.
Users can upgrade to MariaDB versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, or 12.3.2 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/MariaDB/server/security/advisories/GHSA-9pjh-5hhw-65v9 | [email protected] | Vendor Advisory |
| https://jira.mariadb.org/browse/MDEV-39408 | [email protected] | Issue TrackingThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mariadb mariadb | >= 10.6.1, < 10.6.26 >= 10.11.1, < 10.11.17 >= 11.4.1, < 11.4.11 >= 11.8.1, < 11.8.7 12.3.1 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 16, 2026 | Initial Analysis | [email protected] |
| Jun 12, 2026 | New CVE Received | [email protected] |