{"cve":"CVE-2026-57480","nvd":{"published":"2026-07-08T21:16:50.890","modified":"2026-10-25T17:10:00.197","status":"Deferred","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.9.1-alpha.12 and 8.6.82, deeply nested $or, $and, and $nor query condition operators in the REST API or LiveQuery query handling could trigger exponential-time processing in the internal query-traversal helper and block the Node.js event loop. This issue is fixed in versions 9.9.1-alpha.12 and 8.6.82.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":null,"cwes":["CWE-407"],"references":["https://github.com/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b","https://github.com/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a","https://github.com/parse-community/parse-server/pull/10511","https://github.com/parse-community/parse-server/pull/10512","https://github.com/parse-community/parse-server/releases/tag/8.6.82"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-57480","score":0.0059,"percentile":0.47914,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-cgxm-vr2f-6fj8","url":"https://osv.dev/vulnerability/GHSA-cgxm-vr2f-6fj8","summary":"parse-server: Denial of service via exponential-time processing of deeply nested query operators","modified":"2026-07-14T16:40:34.508744504Z","packages":[{"ecosystem":"npm","name":"parse-server","purl":"pkg:npm/parse-server","ranges":[">=9.0.0 <9.9.1-alpha.12"],"fixed":["9.9.1-alpha.12"]},{"ecosystem":"npm","name":"parse-server","purl":"pkg:npm/parse-server","ranges":["<8.6.82"],"fixed":["8.6.82"]}]}],"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."]}