FKIE_CVE-2026-34573

Vulnerability from fkie_nvd - Published: 2026-03-31 16:16 - Updated: 2026-04-02 17:31
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.68 and 9.7.0-alpha.12, the GraphQL query complexity validator can be exploited to cause a denial-of-service by sending a crafted query with binary fan-out fragment spreads. A single unauthenticated request can block the Node.js event loop for seconds, denying service to all concurrent users. This only affects deployments that have enabled the requestComplexity.graphQLDepth or requestComplexity.graphQLFields configuration options. This issue has been patched in versions 8.6.68 and 9.7.0-alpha.12.
References
security-advisories@github.comhttps://github.com/parse-community/parse-server/commit/ea15412795f34594cc8a674fe858d445675e0295Patch
security-advisories@github.comhttps://github.com/parse-community/parse-server/commit/f759bda075298ec44e2b4fb57659a0c56620483bPatch
security-advisories@github.comhttps://github.com/parse-community/parse-server/pull/10344Issue Tracking, Patch
security-advisories@github.comhttps://github.com/parse-community/parse-server/pull/10345Issue Tracking, Patch
security-advisories@github.comhttps://github.com/parse-community/parse-server/security/advisories/GHSA-mfj6-6p54-m98cPatch, Vendor Advisory
Impacted products
Vendor Product Version
parseplatform parse-server *
parseplatform parse-server *
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
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  "lastModified": "2026-04-02T17:31:49.910",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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