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Vulnerability record · public intelligence
CVE-2026-44168
HIGH

MariaDB: wsrep SST unsafe parameter handling on the donor side

Published Jun 12, 2026 · Updated Nov 3, 2026

Severity · CVSSHIGH · Not scored
Known exploitationNot listed
EPSS / likelihood0.59%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

MariaDB: wsrep SST unsafe parameter handling on the donor side

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

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, during the SST the donor node is interpolating parameters that the joiner sent into the command line. Not all parameters were properly validated which could allow a malicious joiner to execute arbitrary shell commands on the donor side via the mariabackup SST method. This issue has been patched in versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

FIRST-EPSSCVE-LIST-V5NVD-MODIFIED
SSVC priority
MEDIUM
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. access.redhat.com ↗
  2. access.redhat.com ↗
  3. access.redhat.com ↗
  4. access.redhat.com ↗
  5. access.redhat.com ↗
  6. access.redhat.com ↗
  7. access.redhat.com ↗
  8. access.redhat.com ↗
  9. access.redhat.com ↗
  10. bugzilla.redhat.com ↗
  11. Security advisory ↗
  12. jira.mariadb.org ↗

Record history

Published Jun 12, 2026 · Last refreshed Nov 3, 2026

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