{"cve":"CVE-2026-113711","nvd":{"published":"2026-10-20T18:17:21.290","modified":"2026-10-20T19:53:10.247","status":"Deferred","description":"ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0 of ApostropheCMS and 3.7.0 of the import-export module, import routes invoke bigUploadMiddleware without an early authorize callback, allowing unauthenticated requests to perform upload initialization, chunk storage, temporary processing, and attacker-declared cleanup work before the later user check rejects the import. This issue is fixed in ApostropheCMS 4.33.0 and import-export 3.7.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400","CWE-770"],"references":["https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce","https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350","https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0","https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-86wm-68pq-5jwq","https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-86wm-68pq-5jwq"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-113711","score":0.00561,"percentile":0.46387,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-86wm-68pq-5jwq","url":"https://osv.dev/vulnerability/GHSA-86wm-68pq-5jwq","summary":"ApostropheCMS: Unauthenticated resource exhaustion via pre-auth aposBigUpload processing in @apostrophecms/import-export","modified":"2026-10-21T14:00:27.319644917Z","packages":[{"ecosystem":"npm","name":"apostrophe","purl":"pkg:npm/apostrophe","ranges":["<4.33.0"],"fixed":["4.33.0"]},{"ecosystem":"npm","name":"@apostrophecms/import-export","purl":"pkg:npm/%40apostrophecms/import-export","ranges":["<3.7.0"],"fixed":["3.7.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}