{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-125118", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-11-09T17:45:35.936Z", "datePublished": "2026-11-09T22:29:55.070Z", "dateUpdated": "2026-11-09T22:29:55.070Z"}, "containers": {"cna": {"title": "Mongoose: Prototype pollution via Schema.prototype.virtual()", "problemTypes": [{"descriptions": [{"cweId": "CWE-1321", "lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "Automattic", "product": "mongoose", "versions": [{"version": "< 6.13.12", "status": "affected"}, {"version": ">= 7.0.0, < 7.8.13", "status": "affected"}, {"version": ">= 8.0.0, < 8.24.7", "status": "affected"}, {"version": ">= 9.0.0, < 9.11.4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-09T22:29:55.070Z"}, "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."}], "source": {"advisory": "GHSA-6972-9mcm-vhwj", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "mongoose", "vendor": "Automattic", "versions": [{"status": "affected", "version": "< 6.13.12"}, {"status": "affected", "version": ">= 7.0.0, < 7.8.13"}, {"status": "affected", "version": ">= 8.0.0, < 8.24.7"}, {"status": "affected", "version": ">= 9.0.0, < 9.11.4"}]}], "source": "[email protected]"}], "cveTags": [], "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."}], "id": "CVE-2026-125118", "lastModified": "2026-11-12T19:18:09.510", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-11-09T23:17:22.243", "references": [{"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/commit/318f7e09dd363a1dfddb8180878488dccd2796d1"}, {"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/commit/74df7769b5a8d89c4413b764029911ee915ea467"}, {"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/commit/7a2a6567abbb72c0430c8cc5b7942141844fecff"}, {"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/commit/fb467e6d33174293dc0360649f20ce68d99117a9"}, {"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/releases/tag/6.13.12"}, {"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/releases/tag/7.8.13"}, {"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/releases/tag/8.24.7"}, {"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/releases/tag/9.11.4"}, {"source": "[email protected]", "url": "https://github.com/Automattic/mongoose/security/advisories/GHSA-6972-9mcm-vhwj"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1321"}], "source": "[email protected]", "type": "Primary"}]}

{}