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CVE Record

CVE-2026-44168: MariaDB: wsrep SST unsafe parameter handling on the donor side

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.

HighCVSS 8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A malicious or compromised MariaDB cluster joiner could abuse State Snapshot Transfer handling to run shell commands on a donor node. This is serious because successful exploitation could affect confidentiality, integrity, and availability of the donor system, but the sources indicate high privileges and specific cluster conditions are required.

Executive priority

Prioritize patching MariaDB cluster environments, especially production clusters where a compromised administrative node could pivot into donor systems. This is high risk but not currently evidenced as broadly exploited in the supplied sources.

Technical view

CVE-2026-44168 is CWE-78 command injection in MariaDB wsrep SST donor-side handling. During mariabackup SST, donor-side command-line parameters include values supplied by the joiner, and not all were properly validated. Affected MariaDB Server branches are 10.6, 10.11, 11.4, 11.8, and 12.3 before the listed patched releases.

Likely exposure

Exposure is most likely in MariaDB Galera/wsrep clusters running affected versions and using the mariabackup SST method. Standalone MariaDB servers without wsrep SST use are not described as affected by the provided sources.

Exploitation context

The bundle does not show KEV listing or active exploitation. The CVSS vector shows network attack surface, high attack complexity, high privileges required, no user interaction, changed scope, and high impact across confidentiality, integrity, and availability.

Researcher notes

Focus validation on donor-side SST paths and trust boundaries between joiner and donor nodes. The key condition is attacker control over a joiner able to influence mariabackup SST parameters; do not assume ordinary remote database access is sufficient.

Mitigation direction

  • Upgrade MariaDB to 10.6.26, 10.11.17, 11.4.11, 11.8.7, or 12.3.2.
  • Apply relevant Red Hat errata where MariaDB is supplied by Red Hat packages.
  • Confirm cluster joiner nodes are trusted before allowing SST operations.
  • Avoid mariabackup SST from unknown or unmanaged joiner nodes until patched.
  • Track MariaDB and distribution vendor guidance for any additional hardening.

Validation and detection

  • Inventory MariaDB Server versions across all database clusters.
  • Identify systems using wsrep/Galera and the mariabackup SST method.
  • Compare installed versions against the affected version ranges in the advisory.
  • Verify patched versions are deployed on both donor and joiner-capable nodes.
  • Review cluster membership and administrative access for unexpected joiner capability.
Prepared
Confidence
high
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-78: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-44168 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
2ADP providers
13Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H1.36GitHub_M
8CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H1.36redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

8High
CVSS 3.1 vector shape for CVE-2026-44168Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPmariadb: Arbitrary Code Execution via improper parameter validation during State Snapshot Transfer
other:Red Hat severity ratingcvssV3_1
  • 2026-06-12T18:01:00.657Z: Reported to Red Hat.
  • 2026-06-12T17:31:26.921Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MariaDBserver>= 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, < 12.3.2Listed
Weakness

CWE details

CWE-78

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-78 · source CWE mapping

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs