{"id":"CVE-2026-125118","published":"2026-11-09T23:17:22.243","lastModified":"2026-11-09T23:17:22.243","description":"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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","cwes":["CWE-1321"],"vendors":[],"products":[],"references":[{"url":"https://github.com/Automattic/mongoose/commit/318f7e09dd363a1dfddb8180878488dccd2796d1","tags":[]},{"url":"https://github.com/Automattic/mongoose/commit/74df7769b5a8d89c4413b764029911ee915ea467","tags":[]},{"url":"https://github.com/Automattic/mongoose/commit/7a2a6567abbb72c0430c8cc5b7942141844fecff","tags":[]},{"url":"https://github.com/Automattic/mongoose/commit/fb467e6d33174293dc0360649f20ce68d99117a9","tags":[]},{"url":"https://github.com/Automattic/mongoose/releases/tag/6.13.12","tags":[]},{"url":"https://github.com/Automattic/mongoose/releases/tag/7.8.13","tags":[]},{"url":"https://github.com/Automattic/mongoose/releases/tag/8.24.7","tags":[]},{"url":"https://github.com/Automattic/mongoose/releases/tag/9.11.4","tags":[]},{"url":"https://github.com/Automattic/mongoose/security/advisories/GHSA-6972-9mcm-vhwj","tags":[]}],"exploitRefs":[{"url":"https://github.com/Automattic/mongoose/commit/318f7e09dd363a1dfddb8180878488dccd2796d1","tags":[]},{"url":"https://github.com/Automattic/mongoose/commit/74df7769b5a8d89c4413b764029911ee915ea467","tags":[]},{"url":"https://github.com/Automattic/mongoose/commit/7a2a6567abbb72c0430c8cc5b7942141844fecff","tags":[]},{"url":"https://github.com/Automattic/mongoose/commit/fb467e6d33174293dc0360649f20ce68d99117a9","tags":[]},{"url":"https://github.com/Automattic/mongoose/releases/tag/6.13.12","tags":[]},{"url":"https://github.com/Automattic/mongoose/releases/tag/7.8.13","tags":[]},{"url":"https://github.com/Automattic/mongoose/releases/tag/8.24.7","tags":[]},{"url":"https://github.com/Automattic/mongoose/releases/tag/9.11.4","tags":[]},{"url":"https://github.com/Automattic/mongoose/security/advisories/GHSA-6972-9mcm-vhwj","tags":[]}],"hasPoc":true,"ai":null}