Path Traversal Vulnerability in MariaDB Server by MariaDB Corporation
CVE-2026-44171

6.3MEDIUM

Key Information:

Vendor

Mariadb

Status
Server
Vendor
CVE Published:
12 June 2026

What is CVE-2026-44171?

The MariaDB Server, a widely used fork of MySQL, is susceptible to a path traversal vulnerability affecting several versions. Specifically, the mbstream utility fails to validate directory paths when unpacking archives. This flaw allows the creation of files outside of the designated target directory, posing a serious risk if exploited through crafted archives. Users are encouraged to update to the patched versions to mitigate this risk.

Affected Version(s)

server >= 10.6.1, < 10.6.26 < 10.6.1, 10.6.26

server >= 10.11.1, < 10.11.17 < 10.11.1, 10.11.17

server >= 11.4.1, < 11.4.11 < 11.4.1, 11.4.11

References

https://github.com/MariaDB/server/security/advisories/GHS...
x_refsource_CONFIRM
https://jira.mariadb.org/browse/MDEV-39408
x_refsource_MISC

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.