Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-08-19 08:48

Modified

2026-08-19 09:09

Summary

Mongoose: Prototype pollution in the update casting via __proto__-prefixed dotted path (Schema._getSchema/path getter)

Details

Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.10, 7.8.10, 8.24.1, and 9.7.2, passing a user-controlled update such as MyModel.updateOne(filter, req.body) can exploit Mongoose update casting with a proto.x dotted path under $set. Schema.prototype.path and Schema.prototype._getPathType can treat inherited properties of schema.paths and schema.nested as schema types, allowing the casting process to set $fullPath and $parentSchemaDocArray on Object.prototype before throwing. This prototype pollution makes those properties visible on newly created objects and can cause application integrity and availability impacts. This issue is fixed in versions 6.13.10, 7.8.10, 8.24.1, and 9.7.2.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "mongoose",
        "purl": "pkg:bitnami/mongoose"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.13.10"
            },
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.8.10"
            },
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.24.1"
            },
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.7.2"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-73562"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:mongoosejs:mongoose:*:*:*:*:*:node.js:*:*"
    ],
    "severity": "Medium"
  },
  "details": "Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.10, 7.8.10, 8.24.1, and 9.7.2, passing a user-controlled update such as MyModel.updateOne(filter, req.body) can exploit Mongoose update casting with a __proto__.x dotted path under $set. Schema.prototype.path and Schema.prototype._getPathType can treat inherited properties of schema.paths and schema.nested as schema types, allowing the casting process to set $fullPath and $parentSchemaDocArray on Object.prototype before throwing. This prototype pollution makes those properties visible on newly created objects and can cause application integrity and availability impacts. This issue is fixed in versions 6.13.10, 7.8.10, 8.24.1, and 9.7.2.",
  "id": "BIT-mongoose-2026-73562",
  "modified": "2026-08-19T09:09:14.600Z",
  "published": "2026-08-19T08:48:07.081Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Automattic/mongoose/commit/35a3f33bc9a0a28671f99e3c5010000425650d0f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Automattic/mongoose/commit/7285466b860d3b511f8d07b2ab72656703ee707a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Automattic/mongoose/commit/953d085bee5a16b5d6c5af33a156e6314d6d9a45"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Automattic/mongoose/commit/fab793b747131c68927888cba41cf3e6d6593740"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Automattic/mongoose/security/advisories/GHSA-664h-wqgq-64gw"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73562"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Mongoose: Prototype pollution in the update casting via __proto__-prefixed dotted path (Schema._getSchema/path getter)"
}

CVE-2026-73562 (GCVE-0-2026-73562)

Vulnerability from cvelistv5 – Published: 2026-08-13 17:27 – Updated: 2026-08-14 18:09

Title

Mongoose: Prototype pollution in the update casting via __proto__-prefixed dotted path (Schema._getSchema/path getter)

Summary

Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.10, 7.8.10, 8.24.1, and 9.7.2, passing a user-controlled update such as MyModel.updateOne(filter, req.body) can exploit Mongoose update casting with a __proto__.x dotted path under $set. Schema.prototype.path and Schema.prototype._getPathType can treat inherited properties of schema.paths and schema.nested as schema types, allowing the casting process to set $fullPath and $parentSchemaDocArray on Object.prototype before throwing. This prototype pollution makes those properties visible on newly created objects and can cause application integrity and availability impacts. This issue is fixed in versions 6.13.10, 7.8.10, 8.24.1, and 9.7.2.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 17:41 UTC

CWE

CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Assigner

GitHub_M mitre root Scorecard

References

5 references

URL	Tags
https://github.com/Automattic/mongoose/security/a…	x_refsource_CONFIRM
https://github.com/Automattic/mongoose/commit/35a…	x_refsource_MISC
https://github.com/Automattic/mongoose/commit/728…	x_refsource_MISC
https://github.com/Automattic/mongoose/commit/953…	x_refsource_MISC
https://github.com/Automattic/mongoose/commit/fab…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Automattic	mongoose	Affected: < 6.13.10 Affected: >= 7.0.0, < 7.8.10 Affected: >= 8.0.0, < 8.24.1 Affected: >= 9.0.0, < 9.7.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-73562",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-14T17:41:16.928150Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-14T18:09:27.112Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "mongoose",
          "vendor": "Automattic",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.13.10"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 7.8.10"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.24.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 9.0.0, \u003c 9.7.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.10, 7.8.10, 8.24.1, and 9.7.2, passing a user-controlled update such as MyModel.updateOne(filter, req.body) can exploit Mongoose update casting with a __proto__.x dotted path under $set. Schema.prototype.path and Schema.prototype._getPathType can treat inherited properties of schema.paths and schema.nested as schema types, allowing the casting process to set $fullPath and $parentSchemaDocArray on Object.prototype before throwing. This prototype pollution makes those properties visible on newly created objects and can cause application integrity and availability impacts. This issue is fixed in versions 6.13.10, 7.8.10, 8.24.1, and 9.7.2."
        }
      ],
      "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": "2026-08-13T17:27:09.914Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Automattic/mongoose/security/advisories/GHSA-664h-wqgq-64gw",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Automattic/mongoose/security/advisories/GHSA-664h-wqgq-64gw"
        },
        {
          "name": "https://github.com/Automattic/mongoose/commit/35a3f33bc9a0a28671f99e3c5010000425650d0f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/commit/35a3f33bc9a0a28671f99e3c5010000425650d0f"
        },
        {
          "name": "https://github.com/Automattic/mongoose/commit/7285466b860d3b511f8d07b2ab72656703ee707a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/commit/7285466b860d3b511f8d07b2ab72656703ee707a"
        },
        {
          "name": "https://github.com/Automattic/mongoose/commit/953d085bee5a16b5d6c5af33a156e6314d6d9a45",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/commit/953d085bee5a16b5d6c5af33a156e6314d6d9a45"
        },
        {
          "name": "https://github.com/Automattic/mongoose/commit/fab793b747131c68927888cba41cf3e6d6593740",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Automattic/mongoose/commit/fab793b747131c68927888cba41cf3e6d6593740"
        }
      ],
      "source": {
        "advisory": "GHSA-664h-wqgq-64gw",
        "discovery": "UNKNOWN"
      },
      "title": "Mongoose: Prototype pollution in the update casting via __proto__-prefixed dotted path (Schema._getSchema/path getter)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-73562",
    "datePublished": "2026-08-13T17:27:09.914Z",
    "dateReserved": "2026-08-12T20:53:46.380Z",
    "dateUpdated": "2026-08-14T18:09:27.112Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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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.

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.

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Vulnerability from bitnami_vulndb

CVE-2026-73562 (GCVE-0-2026-73562)

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