{"id":"CVE-2026-57480","aliases":["BIT-parse-2026-57480","GHSA-cgxm-vr2f-6fj8"],"url":"https://o3.security/vulnerability/CVE-2026-57480","summary":"Parse Server: Denial of service via exponential-time processing of deeply nested query operators","details":"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.","published":"2026-07-08T20:53:21.307Z","modified":"2026-08-12T03:51:30.247405670Z","cvss":null,"epss":{"score":0.0059,"percentile":0.46075,"asOf":"2026-09-07"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"parse-server","fixedVersion":"9.9.1-alpha.12"},{"ecosystem":"npm","name":"parse-server","fixedVersion":"8.6.82"}],"fix":{"url":"https://github.com/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b","label":"parse-community/parse-server@0f5d2ad"},"references":[{"type":"WEB","url":"https://github.com/parse-community/parse-server/releases/tag/8.6.82"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.12"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57480.json"},{"type":"ADVISORY","url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-cgxm-vr2f-6fj8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57480"},{"type":"FIX","url":"https://github.com/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b"},{"type":"FIX","url":"https://github.com/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a"},{"type":"FIX","url":"https://github.com/parse-community/parse-server/pull/10511"},{"type":"FIX","url":"https://github.com/parse-community/parse-server/pull/10512"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:30.247405670Z"}}