CVE-2026-44171: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in MariaDB server
A path traversal vulnerability (CWE-22) exists in the mbstream component of MariaDB server 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 exactly 12.3.1. The vulnerability allows specially crafted archives containing '/../' sequences to cause mbstream to write files outside the intended target directory during archive unpacking. This issue has been addressed in MariaDB server versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2.
AI Analysis
Technical Summary
MariaDB server's mbstream utility did not properly validate file paths when unpacking archives, allowing path traversal via '/../' sequences. This could lead to creation of files outside the designated directory, potentially impacting confidentiality, integrity, and availability. The vulnerability affects multiple version ranges and has been patched in later versions as specified.
Potential Impact
Exploitation of this vulnerability could allow an attacker with appropriate privileges to write files outside the intended directory, potentially overwriting critical files or placing malicious files on the system. The CVSS score of 6.3 indicates a medium severity with high impact on confidentiality, integrity, and availability. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix is available in MariaDB server versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2. Users should upgrade to these or later versions to remediate the vulnerability. No vendor advisory content contradicts this; therefore, upgrading is the recommended mitigation.
CVE-2026-44171: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in MariaDB server
Description
A path traversal vulnerability (CWE-22) exists in the mbstream component of MariaDB server 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 exactly 12.3.1. The vulnerability allows specially crafted archives containing '/../' sequences to cause mbstream to write files outside the intended target directory during archive unpacking. This issue has been addressed in MariaDB server versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2.
CVSS v3.1
Score 6.3medium
Affected software
pkg:github/mariadb/serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
MariaDB server's mbstream utility did not properly validate file paths when unpacking archives, allowing path traversal via '/../' sequences. This could lead to creation of files outside the designated directory, potentially impacting confidentiality, integrity, and availability. The vulnerability affects multiple version ranges and has been patched in later versions as specified.
Potential Impact
Exploitation of this vulnerability could allow an attacker with appropriate privileges to write files outside the intended directory, potentially overwriting critical files or placing malicious files on the system. The CVSS score of 6.3 indicates a medium severity with high impact on confidentiality, integrity, and availability. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix is available in MariaDB server versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2. Users should upgrade to these or later versions to remediate the vulnerability. No vendor advisory content contradicts this; therefore, upgrading is the recommended mitigation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-05T14:39:34.923Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2c4809e617e2d8349cf155
Added to database: 06/12/2026, 17:55:21 UTC
Last enriched: 06/19/2026, 18:26:53 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 82
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