Vulnerability-Lookup

GHSA-4JQ2-8V3C-97W8

Vulnerability from github – Published: 2026-10-30 23:00 – Updated: 2026-10-30 23:00

Summary

MariaDB Connector/J: XA recover() trusted server-supplied gtrid and bqual lengths

Details

Summary

XAResource.recover() in MariaDB Connector/J trusted the gtrid_length and bqual_length columns returned by XA RECOVER to allocate and split each Xid.

Details

MariaDbPoolConnection and MariaDbPoolPinnedConnection built each Xid of the recovery list by allocating new byte[gtrid_length] and new byte[bqual_length] and copying from the data column, without validating the lengths against the XA specification bounds (Xid.MAXGTRIDSIZE, Xid.MAXBQUALSIZE) or the actual payload. Negative or oversized lengths, or lengths that do not fit the data, ended in large allocations or unchecked exceptions (NegativeArraySizeException, ArrayIndexOutOfBoundsException) during recovery.

The fix validates the lengths before any allocation or copy and reports an invalid row as an XAException (XAER_RMFAIL).

Impact

Availability only, and limited to applications running XA recovery: a malicious or compromised server, or a MitM, can crash the recovery or drive large allocations. Exploitation requires control of the server side of the connection.

Credit

Reported by fg0x0

Severity

3.7 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.mariadb.jdbc:mariadb-java-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.3.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.mariadb.jdbc:mariadb-java-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.4.0"
            },
            {
              "fixed": "3.4.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.mariadb.jdbc:mariadb-java-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.5.0"
            },
            {
              "fixed": "3.5.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-119280"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-789"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-30T23:00:01Z",
    "nvd_published_at": "2026-10-29T21:17:21Z",
    "severity": "LOW"
  },
  "details": "## Summary\n\n`XAResource.recover()` in MariaDB Connector/J trusted the `gtrid_length` and\n`bqual_length` columns returned by `XA RECOVER` to allocate and split each Xid.\n\n## Details\n\n`MariaDbPoolConnection` and `MariaDbPoolPinnedConnection` built each `Xid` of\nthe recovery list by allocating `new byte[gtrid_length]` and\n`new byte[bqual_length]` and copying from the `data` column, without validating\nthe lengths against the XA specification bounds (`Xid.MAXGTRIDSIZE`,\n`Xid.MAXBQUALSIZE`) or the actual payload. Negative or oversized lengths, or\nlengths that do not fit the data, ended in large allocations or unchecked\nexceptions (`NegativeArraySizeException`, `ArrayIndexOutOfBoundsException`)\nduring recovery.\n\nThe fix validates the lengths before any allocation or copy and reports an\ninvalid row as an `XAException` (`XAER_RMFAIL`).\n\n## Impact\n\nAvailability only, and limited to applications running XA recovery: a malicious\nor compromised server, or a MitM, can crash the recovery or drive large\nallocations. Exploitation requires control of the server side of the connection.\n\n## Credit\n\nReported by fg0x0",
  "id": "GHSA-4jq2-8v3c-97w8",
  "modified": "2026-10-30T23:00:01Z",
  "published": "2026-10-30T23:00:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-4jq2-8v3c-97w8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119280"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/280efcfb4390055858fa2dd12b722d85a6a13ab8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/47aba5a23548b35191865a428cc674316b95ee47"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/e9d767103bfd178ed57caa4cb97bbfbf7e54da6b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mariadb-corporation/mariadb-connector-j"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MariaDB Connector/J: XA recover() trusted server-supplied gtrid and bqual lengths"
}

CVE-2026-119280 (GCVE-0-2026-119280)

Vulnerability from cvelistv5 – Published: 2026-10-29 20:55 – Updated: 2026-10-30 17:10

Title

MariaDB Connector/J : XA recover() trusted server-supplied gtrid and bqual lengths

Summary

MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.11, the MariaDbPoolConnection.recover() and MariaDbPoolPinnedConnection.recover() implementations trusted the gtrid_length and bqual_length columns returned by XA RECOVER. The methods allocated and split Xid byte arrays without validating the lengths against Xid.MAXGTRIDSIZE, Xid.MAXBQUALSIZE, or the actual data payload. A malicious or compromised server, or a machine-in-the-middle attacker, could cause large allocations, NegativeArraySizeException, or ArrayIndexOutOfBoundsException during XA recovery. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.

Severity

3.7 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-30 17:09 UTC

CWE

CWE-20 - Improper Input Validation
CWE-789 - Memory Allocation with Excessive Size Value

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 8083 records in the last 180 days details

References

7 references

URL	Tags
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_CONFIRM
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
mariadb-corporation	mariadb-connector-j	Affected: >= 3.0.0, < 3.3.7 Affected: >= 3.4.0, < 3.4.5 Affected: >= 3.5.0, < 3.5.11

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-119280",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-30T17:09:58.150194Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-30T17:10:10.174Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "mariadb-connector-j",
          "vendor": "mariadb-corporation",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.3.7"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.4.0, \u003c 3.4.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.5.0, \u003c 3.5.11"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.11, the MariaDbPoolConnection.recover() and MariaDbPoolPinnedConnection.recover() implementations trusted the gtrid_length and bqual_length columns returned by XA RECOVER. The methods allocated and split Xid byte arrays without validating the lengths against Xid.MAXGTRIDSIZE, Xid.MAXBQUALSIZE, or the actual data payload. A malicious or compromised server, or a machine-in-the-middle attacker, could cause large allocations, NegativeArraySizeException, or ArrayIndexOutOfBoundsException during XA recovery. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20: Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-789",
              "description": "CWE-789: Memory Allocation with Excessive Size Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-29T20:55:50.101Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-4jq2-8v3c-97w8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-4jq2-8v3c-97w8"
        },
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/280efcfb4390055858fa2dd12b722d85a6a13ab8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/280efcfb4390055858fa2dd12b722d85a6a13ab8"
        },
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/47aba5a23548b35191865a428cc674316b95ee47",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/47aba5a23548b35191865a428cc674316b95ee47"
        },
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/e9d767103bfd178ed57caa4cb97bbfbf7e54da6b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/e9d767103bfd178ed57caa4cb97bbfbf7e54da6b"
        },
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7"
        },
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5"
        },
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11"
        }
      ],
      "source": {
        "advisory": "GHSA-4jq2-8v3c-97w8",
        "discovery": "UNKNOWN"
      },
      "title": "MariaDB Connector/J : XA recover() trusted server-supplied gtrid and bqual lengths"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-119280",
    "datePublished": "2026-10-29T20:55:50.101Z",
    "dateReserved": "2026-10-29T18:50:28.064Z",
    "dateUpdated": "2026-10-30T17:10:10.174Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-4JQ2-8V3C-97W8

Summary

Details

Impact

Credit

CVE-2026-119280 (GCVE-0-2026-119280)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour