CVE-2026-33508

Parse Server’s LiveQuery WebSocket subscription processing is vulnerable to a query depth bypass due to not enforcing the requestComplexity.queryDepth setting before versions 8.6.56 and 9.6.0-alpha.45. An attacker can submit a subscription with deeply nested logical operators, triggering recursio...

CVE-2026-32098

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.9 and 8.6.35, an attacker can exploit LiveQuery subscriptions to infer the values of protected fields without directly receiving them. By subscribing with a WHERE clause th...

CVE-2022-31112 Protected fields exposed via LiveQuery in parse-server

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In affected versions parse Server LiveQuery does not remove protected fields in classes, passing them to the client. The LiveQueryController now removes protected fields from the client respons...