{"id":"BIT-parse-2026-34595","summary":"Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value","details":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.70 and 9.7.0, an authenticated user with find class-level permission can bypass the protectedFields class-level permission setting on LiveQuery subscriptions. By sending a subscription with a $or, $and, or $nor operator value as a plain object with numeric keys and a length property (an \"array-like\" object) instead of an array, the protected-field guard is bypassed. The subscription event firing acts as a binary oracle, allowing the attacker to infer whether a protected field matches a given test value. This issue has been patched in versions 8.6.70 and 9.7.0.","aliases":["CVE-2026-34595","GHSA-mmg8-87c5-jrc2"],"modified":"2026-04-06T15:27:07.776510020Z","published":"2026-04-06T14:49:36.710Z","database_specific":{"cpes":["cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/pull/10350"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/pull/10351"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34595"}],"affected":[{"package":{"name":"parse","ecosystem":"Bitnami","purl":"pkg:bitnami/parse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.6.70"},{"introduced":"9.0.0"},{"fixed":"9.7.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/parse/BIT-parse-2026-34595.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.7.5"}