cvedb.io
CVE-2026-33508
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-03-24T19:16:54.220 · Last modified 2026-06-17T10:37:37.370

Summary

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.56 and 9.6.0-alpha.45, Parse Server's LiveQuery component does not enforce the requestComplexity.queryDepth configuration setting when processing WebSocket subscription requests. An attacker can send a subscription with deeply nested logical operators, causing excessive recursion and CPU consumption that degrades or disrupts service availability. This issue has been patched in versions 8.6.56 and 9.6.0-alpha.45.

Affected products

parseplatform — parse-server

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.