{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "mongoose",
          "vendor": "Automattic",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.13.12"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 7.8.13"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.24.7"
            },
            {
              "status": "affected",
              "version": "\u003e= 9.0.0, \u003c 9.11.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.12, 7.8.13, 8.24.7, and 9.11.4, Schema.prototype.virtual() builds nested virtual paths without applying the special-property validation already used by Schema.path() and Schema.add(). An attacker who can influence virtual field names in dynamic schemas, content-management form builders, or schema-as-code systems can supply path segments such as __proto__, constructor, or prototype, causing the virtual-path reducer to write enumerable properties to Object.prototype or Function.prototype. The resulting prototype pollution can spoof inherited property checks such as authorization flags and can provide function-prototype gadget state to other server-side JavaScript code. This issue is fixed in versions 6.13.12, 7.8.13, 8.24.7, and 9.11.4."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1321",
              "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-09T22:29:55.070Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Automattic/mongoose/security/advisories/GHSA-6972-9mcm-vhwj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Automattic/mongoose/security/advisories/GHSA-6972-9mcm-vhwj"
        },
        {
          "name": "https://github.com/Automattic/mongoose/commit/318f7e09dd363a1dfddb8180878488dccd2796d1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/commit/318f7e09dd363a1dfddb8180878488dccd2796d1"
        },
        {
          "name": "https://github.com/Automattic/mongoose/commit/74df7769b5a8d89c4413b764029911ee915ea467",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/commit/74df7769b5a8d89c4413b764029911ee915ea467"
        },
        {
          "name": "https://github.com/Automattic/mongoose/commit/7a2a6567abbb72c0430c8cc5b7942141844fecff",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/commit/7a2a6567abbb72c0430c8cc5b7942141844fecff"
        },
        {
          "name": "https://github.com/Automattic/mongoose/commit/fb467e6d33174293dc0360649f20ce68d99117a9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/commit/fb467e6d33174293dc0360649f20ce68d99117a9"
        },
        {
          "name": "https://github.com/Automattic/mongoose/releases/tag/6.13.12",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/releases/tag/6.13.12"
        },
        {
          "name": "https://github.com/Automattic/mongoose/releases/tag/7.8.13",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/releases/tag/7.8.13"
        },
        {
          "name": "https://github.com/Automattic/mongoose/releases/tag/8.24.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/releases/tag/8.24.7"
        },
        {
          "name": "https://github.com/Automattic/mongoose/releases/tag/9.11.4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/releases/tag/9.11.4"
        }
      ],
      "source": {
        "advisory": "GHSA-6972-9mcm-vhwj",
        "discovery": "UNKNOWN"
      },
      "title": "Mongoose: Prototype pollution via Schema.prototype.virtual()"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-125118",
    "datePublished": "2026-11-09T22:29:55.070Z",
    "dateReserved": "2026-11-09T17:45:35.936Z",
    "dateUpdated": "2026-11-09T22:29:55.070Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}