{"id":"EUVD-2026-45337","revision":"383ce33f25234a50a739e87366b1a5f3","records":[{"revision":"383ce33f25234a50a739e87366b1a5f3","observedAt":"2026-10-28T08:08:25.531+00:00","statement":{"source":"euvd","id":"EUVD-2026-45337","aliases":["CVE-2026-54335","GHSA-28xv-ph75-77wh"],"title":"Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. In 5.0.44 and earlier, the _.merge(target, source) utility exported by @feathersjs/commons recursively merges source into target by it…","description":"Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. In 5.0.44 and earlier, the _.merge(target, source) utility exported by @feathersjs/commons recursively merges source into target by iterating Object.keys(source). When source was produced by JSON.parse and contains a __proto__, constructor, or prototype key, that key is returned as an own-enumerable property; the recursive merge then resolves target['__proto__'] to Object.prototype and writes attacker-supplied properties onto it, polluting the prototype for all plain objects in the process for the lifetime of the Node process. This issue is fixed in version 5.0.45.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","score":3.7,"severity":null}],"references":["https://github.com/feathersjs/feathers/security/advisories/GHSA-28xv-ph75-77wh","https://github.com/feathersjs/feathers/pull/3690","https://github.com/feathersjs/feathers/commit/28b3c03c63bdbff53115fdaa46c56980e7942acc","https://github.com/feathersjs/feathers/releases/tag/v5.0.45"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-45337","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 17, 2026, 8:56:51 PM","dateUpdated":"Jul 20, 2026, 5:38:02 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-45337","identifiers":["EUVD-2026-45337","CVE-2026-54335","GHSA-28xv-ph75-77wh"]},"retained":false,"historicalAffected":[]}],"coverage":[]}