{"id":"EUVD-2026-28792","revision":"52639372953f4f3892e4b8ac5b045a8e","records":[{"revision":"52639372953f4f3892e4b8ac5b045a8e","observedAt":"2026-10-28T05:10:56.667+00:00","statement":{"source":"euvd","id":"EUVD-2026-28792","aliases":["CVE-2026-41690"],"title":"18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno. Versions prior to 3.9.3 allow an unauthenticated HTTP client to pollute Object.prototype in the Node.js process hosting…","description":"18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno. Versions prior to 3.9.3 allow an unauthenticated HTTP client to pollute Object.prototype in the Node.js process hosting the middleware, via two unvalidated entry points that reach internal object-key writes: getResourcesHandler and missingKeyHandler. This can break authorisation checks (if (user.isAdmin) returning true for any user), cause type-confusion DoS, and depending on downstream code  it can be chained into RCE.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L","score":8.6,"severity":null}],"references":["https://github.com/i18next/i18next-http-middleware/security/advisories/GHSA-5fgg-jcpf-8jjw"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-28792","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 8, 2026, 3:24:12 PM","dateUpdated":"May 8, 2026, 4:43:48 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-2026-28792","identifiers":["EUVD-2026-28792","CVE-2026-41690"]},"retained":false,"historicalAffected":[]}],"coverage":[]}