Bucket vulnerable to infinite recursion when querying a bucket using the != operator

{
  "id": "8b416ddb35cd5ba929ed7adf3d005c4dbad0ce34b8c1765bcf9ec19eb268ce9e",
  "url": "https://osv.dev/vulnerability/CVE-2025-61766",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Bucket vulnerable to infinite recursion when querying a bucket using the != operator",
    "summary": "Bucket is a MediaWiki extension to store and retrieve structured data on articles. Prior to version 1.0.0, infinite recursion can occur if a user queries a bucket using the `!=` comparator. This will result in PHP's call stack limit exceeding, and/or increased memory consumption, potentially leading to a denial of service. Version 1.0.0 contains a patch for the issue.",
    "evidence": "osv:CVE-2025-61766",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-61766",
      "aliases": [
        "CVE-2025-61766",
        "GHSA-r9f2-4jh3-659j"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/weirdgloop/mediawiki-extensions-bucket",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6f4a71d531cb802cdb991d2a4ca7bf8fb691defd"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "6f4a71d531cb802cdb991d2a4ca7bf8fb691defd"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-61766.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.206274222Z",
      "provider": "osv",
      "references": [
        "https://github.com/weirdgloop/mediawiki-extensions-Bucket/blob/ad704120a1660b5929fb5825db1cf85c9c77acf4/includes/Expression/MemberOfExpression.php#L34",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/61xxx/CVE-2025-61766.json",
        "https://github.com/weirdgloop/mediawiki-extensions-Bucket/security/advisories/GHSA-r9f2-4jh3-659j",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-61766",
        "https://github.com/weirdgloop/mediawiki-extensions-Bucket/commit/6f4a71d531cb802cdb991d2a4ca7bf8fb691defd"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-674"
        ],
        "cna_assigner": "GitHub_M",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.0.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.0.0"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/61xxx/CVE-2025-61766.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-61766",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498067,
  "published_at": "2025-10-06T16:07:04.126+00:00"
}