CVE-2026-57480

HIGH8.7

Parse Server: Denial of service via exponential-time processing of deeply nested query operators

Published Jul 8, 2026

Modified 1 months ago

Details

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.

References

WEB

https://github.com/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b

WEB

https://github.com/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a

WEB

https://github.com/parse-community/parse-server/pull/10511

WEB

https://github.com/parse-community/parse-server/pull/10512

WEB

https://github.com/parse-community/parse-server/releases/tag/8.6.82

WEB