{"id":"GHSA-vmg4-6gfg-83qx","revision":"26961e234e054f04920192731fe831e5","records":[{"revision":"26961e234e054f04920192731fe831e5","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-vmg4-6gfg-83qx","aliases":["CVE-2026-71553"],"title":"ApostropheCMS: 2nd-order prototype pollution via PATCH leading to single-request persistent DoS","description":"The vulnerability is a single-request persistent DoS by submitting e.g.\n\"PATCH /api/v1/article/<id>\" with a valid editor session and body of\n{\"toString.call\":\"x\"}, overwriting the global toString function with\nvalue x.\n\nFabian","state":0,"publishedAt":"2026-09-02T15:12:41+00:00","modifiedAt":"2026-09-02T15:30:17.6310635+00:00","affected":[{"ecosystem":"npm","name":"apostrophe","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"last_affected","version":"4.32.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","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":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmg4-6gfg-83qx","https://nvd.nist.gov/vuln/detail/CVE-2026-71553","https://github.com/apostrophecms/apostrophe/commit/5a3746aaed49761e171c2cbfe793267c959829fd","https://github.com/apostrophecms/apostrophe"],"sourceUrl":"https://github.com/advisories/GHSA-vmg4-6gfg-83qx","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-vmg4-6gfg-83qx","identifiers":["GHSA-vmg4-6gfg-83qx","CVE-2026-71553"]},"retained":false,"historicalAffected":[]}],"coverage":[]}