{"id":"CVE-2026-73231","revision":null,"records":[{"revision":"2baefbfc299f4e88bad11173353e2f28","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-73231","aliases":[],"title":"Faker: helpers.fake exploitable into arbritary code execution","description":"Faker generates massive amounts of fake data in the browser and Node.js. Prior to 10.5.0, the faker.helpers.fake method in src/modules/helpers/eval.ts allows attacker-controlled fake templates to access the Function constructor through fakeEval.resolveProperty when a function returns another function, enabling arbitrary JavaScript code execution. This issue is fixed in version 10.5.0.","state":0,"publishedAt":"2026-08-11T19:28:44.943+00:00","modifiedAt":"2026-08-13T14:41:25.803+00:00","affected":[{"ecosystem":"Vendor product","name":"faker","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"faker-js\",\n                    \"product\": \"faker\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 10.5.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://github.com/faker-js/faker/security/advisories/GHSA-qxc2-j82w-r537","https://github.com/faker-js/faker/pull/3852","https://github.com/faker-js/faker/commit/54586208f904012f57c50b46cc1ad32bcbe4bfb7","https://github.com/faker-js/faker/releases/tag/v10.5.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-73231","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-73231","identifiers":["CVE-2026-73231"]},"retained":false,"historicalAffected":[]},{"revision":"b80be28ec76b42f4951ce2ca616c685f","observedAt":"2026-10-25T15:19:03.401+00:00","statement":{"source":"nvd","id":"CVE-2026-73231","aliases":[],"title":"Faker generates massive amounts of fake data in the browser and Node.js. Prior to 10.5.0, the faker.helpers.fake method in src/modules/helpers/eval.ts allows attacker-controlled fake templates to access the Function constructor through fake…","description":"Faker generates massive amounts of fake data in the browser and Node.js. Prior to 10.5.0, the faker.helpers.fake method in src/modules/helpers/eval.ts allows attacker-controlled fake templates to access the Function constructor through fakeEval.resolveProperty when a function returns another function, enabling arbitrary JavaScript code execution. This issue is fixed in version 10.5.0.","state":0,"publishedAt":"2026-08-11T20:18:48.4+00:00","modifiedAt":"2026-10-24T15:10:00.19+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://github.com/faker-js/faker/commit/54586208f904012f57c50b46cc1ad32bcbe4bfb7","https://github.com/faker-js/faker/pull/3852","https://github.com/faker-js/faker/releases/tag/v10.5.0","https://github.com/faker-js/faker/security/advisories/GHSA-qxc2-j82w-r537"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73231","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-95"],"productCriteria":[],"sourceDates":{"published":"2026-08-11T20:18:48.400","lastModified":"2026-10-24T15:10:00.190"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-73231","identifiers":["CVE-2026-73231"]},"retained":false,"historicalAffected":[]},{"revision":"bf310bf617dc4718bcf1ab9eae41c93d","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-qxc2-j82w-r537","aliases":["CVE-2026-73231"],"title":"Faker: helpers.fake exploitable into arbritary code execution","description":"### Summary\n\n`faker.helpers.fake` can be tricked into arbritary code execution.\n\n### Details\n\nfakeEval.resolveProperty resolves properties on functions itself instead of resolving the nested function first.\nThis can be addressed by recursively calling resolveProperty instead of accessing the property after one iteration.\n\n### PoC\n\nGo to https://fakerjs.dev/\nOpen Browser console and run\n\n````ts\nawait enableFaker(); // or import faker\nfaker.rawDefinitions.test = (() => () => {}); // Any function that returns a function\nfaker.helpers.fake(`{{test.constructor(alert('PowerLevel: Eval'))}}`);\n````\n\n### Impact\n\nThe Fake method claims:\n\n> It is also NOT possible to use any non-faker methods or plain javascript in such patterns.\n\nWhich is objectively false, since any global gets fully accessible in the fake string.","state":0,"publishedAt":"2026-09-02T14:20:14+00:00","modifiedAt":"2026-09-02T14:30:05.8844305+00:00","affected":[{"ecosystem":"npm","name":"@faker-js/faker","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"10.5.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/faker-js/faker/security/advisories/GHSA-qxc2-j82w-r537","https://nvd.nist.gov/vuln/detail/CVE-2026-73231","https://github.com/faker-js/faker/pull/3852","https://github.com/faker-js/faker/commit/54586208f904012f57c50b46cc1ad32bcbe4bfb7","https://github.com/faker-js/faker","https://github.com/faker-js/faker/releases/tag/v10.5.0"],"sourceUrl":"https://github.com/advisories/GHSA-qxc2-j82w-r537","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-qxc2-j82w-r537","identifiers":["GHSA-qxc2-j82w-r537","CVE-2026-73231"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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