{"id":"EUVD-2026-36590","revision":"8b8878a25b8d4b268f52ad9deff85f71","records":[{"revision":"8b8878a25b8d4b268f52ad9deff85f71","observedAt":"2026-10-28T07:18:09.593+00:00","statement":{"source":"euvd","id":"EUVD-2026-36590","aliases":["CVE-2026-53609","GHSA-6h5j-32cf-4253"],"title":"ApostropheCMS is an open-source Node.js content management system. In versions up to and including 4.30.0, `apos.util.set()` traverses dot-notation paths without sanitizing `__proto__`, allowing an authenticated editor to write arbitrary va…","description":"ApostropheCMS is an open-source Node.js content management system. In versions up to and including 4.30.0, `apos.util.set()` traverses dot-notation paths without sanitizing `__proto__`, allowing an authenticated editor to write arbitrary values to `Object.prototype` via the `$pullAll` patch operator. A confirmed gadget in `publicApiCheck()` causes this to bypass authorization on all piece-type REST API endpoints for every subsequent unauthenticated request, for the lifetime of the Node.js process. As of time of publication, no known patched versions are available.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L","score":9.1,"severity":null}],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-6h5j-32cf-4253"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-36590","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 12, 2026, 8:59:25 PM","dateUpdated":"Jun 15, 2026, 6:29:55 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-2026-36590","identifiers":["EUVD-2026-36590","CVE-2026-53609","GHSA-6h5j-32cf-4253"]},"retained":false,"historicalAffected":[]}],"coverage":[]}