{"id":"CVE-2026-71553","revision":"bb8baec1eeb149a593b9f945400cd0fb","records":[{"revision":"bb8baec1eeb149a593b9f945400cd0fb","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-71553","aliases":[],"title":"ApostropheCMS: 2nd-order prototype pollution via PATCH leading to single-request persistent DoS","description":"ApostropheCMS is an open-source Node.js content management system. In 4.32.0 and earlier, PATCH /api/v1/article/:id accepts the inherited path toString.call and passes it through the utility module to apos.util.set() and apos.util.get(), allowing an authenticated editor to overwrite the shared Object.prototype.toString function's call property and cause a persistent process-wide denial of service until restart.","state":0,"publishedAt":"2026-08-17T20:03:37.883+00:00","modifiedAt":"2026-08-17T20:14:15.721+00:00","affected":[{"ecosystem":"Vendor product","name":"apostrophe","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"apostrophecms\",\n                    \"product\": \"apostrophe\",\n                    \"versions\": [\n                        {\n                            \"version\": \"<= 4.32.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","score":7.1,"severity":"HIGH"}],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmg4-6gfg-83qx","https://github.com/apostrophecms/apostrophe/commit/5a3746aaed49761e171c2cbfe793267c959829fd"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-71553","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-71553","identifiers":["CVE-2026-71553"]},"retained":false,"historicalAffected":[]}],"coverage":[]}