{"id":"CVE-2026-57480","state":"PUBLISHED","title":"Parse Server: Denial of service via exponential-time processing of deeply nested query operators","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.","publishedAt":"2026-07-08T20:53:21.307Z","updatedAt":"2026-07-09T13:43:23.509Z","severity":{"score":8.7,"label":"High","version":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["parse-community parse-server"],"affected":[{"vendor":"parse-community","product":"parse-server","versions":[{"version":">= 9.0.0-alpha.1, < 9.9.1-alpha.12","status":"affected"},{"version":"< 8.6.82","status":"affected"}]}],"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"],"weaknesses":["CWE-407"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/57xxx/CVE-2026-57480.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-57480","state":"PUBLISHED","datePublished":"2026-07-08T20:53:21.307Z","dateUpdated":"2026-07-09T13:43:23.509Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-24T14:53:40.110Z"},"containers":{"cna":{"title":"Parse Server: Denial of service via exponential-time processing of deeply nested query operators","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"parse-community","product":"parse-server","versions":[{"version":">= 9.0.0-alpha.1, < 9.9.1-alpha.12","status":"affected"},{"version":"< 8.6.82","status":"affected"}]}],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-cgxm-vr2f-6fj8","name":"https://github.com/parse-community/parse-server/security/advisories/GHSA-cgxm-vr2f-6fj8","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/parse-community/parse-server/pull/10511","name":"https://github.com/parse-community/parse-server/pull/10511","tags":["x_refsource_MISC"]},{"url":"https://github.com/parse-community/parse-server/pull/10512","name":"https://github.com/parse-community/parse-server/pull/10512","tags":["x_refsource_MISC"]},{"url":"https://github.com/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b","name":"https://github.com/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b","tags":["x_refsource_MISC"]},{"url":"https://github.com/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a","name":"https://github.com/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a","tags":["x_refsource_MISC"]},{"url":"https://github.com/parse-community/parse-server/releases/tag/8.6.82","name":"https://github.com/parse-community/parse-server/releases/tag/8.6.82","tags":["x_refsource_MISC"]},{"url":"https://github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.12","name":"https://github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.12","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-407","lang":"en","description":"CWE-407: Inefficient Algorithmic Complexity","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-08T20:53:21.307Z"},"source":{"advisory":"GHSA-cgxm-vr2f-6fj8","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-09T13:43:00.734926Z","id":"CVE-2026-57480","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-09T13:43:23.509Z"}}]}}}