{"id":"EUVD-2026-42421","revision":"5273904826b34618bb651c46e9110afa","records":[{"revision":"5273904826b34618bb651c46e9110afa","observedAt":"2026-11-03T11:10:28.186+00:00","statement":{"source":"euvd","id":"EUVD-2026-42421","aliases":["CVE-2026-57480"],"title":"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 handl…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","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,"severity":null}],"references":["https://github.com/parse-community/parse-server/security/advisories/GHSA-cgxm-vr2f-6fj8","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/commit/0f5d2ad77b422dc904458254548be87397fc6e9b","https://github.com/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a","https://github.com/parse-community/parse-server/releases/tag/8.6.82","https://github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.12"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-42421","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 8, 2026, 8:53:21 PM","dateUpdated":"Jul 9, 2026, 1:43:23 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-2026-42421","identifiers":["EUVD-2026-42421","CVE-2026-57480"]},"retained":false,"historicalAffected":[]}],"coverage":[]}