{"id":"CVE-2026-100632","published":"2026-09-26T14:16:44.540","lastModified":"2026-09-28T17:17:43.223","description":"Parse Server is an open-source backend server. In versions >= 9.0.0 and < 9.10.1-alpha.8, and in versions < 8.6.89, LiveQuery evaluates the protectedFields class-level permission against an incompletely resolved caller identity: the subscriber's roles are not resolved, and when a subscription does not supply its own session token the event payload is redacted against an anonymous identity even though the read was authorized against the connected user. As a result, field masks defined for a role, for authenticated users, or for a specific user are not applied, so an authenticated subscriber can receive field values that the REST API correctly withholds and can use a masked field to filter or watch a subscription. Only classes with LiveQuery enabled that define protectedFields under a role:, authenticated, or per-user group are affected; masks under the public (*) group are applied correctly. The issue is fixed in 9.10.1-alpha.8 and 8.6.89. As a workaround, additionally define the affected field masks under the public (*) group, or disable LiveQuery for classes whose class-level permissions rely on role-scoped, authenticated, or per-user protectedFields groups.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-200"],"vendors":[],"products":[],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-9jpp-xhh6-75mf","tags":[]},{"url":"https://www.vulncheck.com/advisories/parse-server-9.0.0-before-9.10.1-protected-fields-disclosure-via-livequery","tags":[]}],"exploitRefs":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-9jpp-xhh6-75mf","tags":[]}],"hasPoc":true,"ai":null}