CVE-2026-107818

MariaDB: environment injection via wsrep bootstrap in the mariadb.service file

HIGH
8.4
CVSS Score
Published: October 9, 2026 at 05:23 PM UTC
Updated: October 14, 2026 at 02:12 PM UTC
1 product affected across 1 vendorMariaDB

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Severity
HIGH8.4
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the mariadb.service unit used /run/mysqld/wsrep-new-cluster during the next service restart. A database user with FILE privilege and a secure-file-priv configuration permitting writes to /run/mysqld could create that file and inject attacker-controlled environment values into the restarted service. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.11.1 ≤ v < 10.11.1910.6.1 ≤ v < 10.6.2811.4.1 ≤ v < 11.4.1311.8.1 ≤ v < 11.8.912.3.1 ≤ v < 12.3.313.0.1 ≤ v < 13.0.2>= 10.11.1, < 10.11.19>= 10.6.1, < 10.6.28>= 11.4.1, < 11.4.13>= 11.8.1, < 11.8.9>= 12.3.1, < 12.3.3>= 13.0.1, < 13.0.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (9)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/MariaDB/server/security/advisories/GHSA-mhvc-vqcq-7vq5
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.4HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-15

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