CVE-2026-34573highCWE-407

CVE-2026-34573: fallo de gravedad alta en parse-community parse-server

Parse Server: GraphQL complexity validator exponential fragment traversal DoS

Publicada el

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.2epss 0.9%
probabilidad de explotación
0.9%top 43% de las CVE
explotación observada
noninguna fuente lo reporta
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Productos afectados
parse-community · parse-server
CVEs relacionadas — parse-community parse-server

En el mismo producto, de las más peligrosas a las menos.

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Referencias
https://github.com/parse-community/parse-server/commit/ea15412795f34594cc8a674fe858d445675e0295https://github.com/parse-community/parse-server/commit/f759bda075298ec44e2b4fb57659a0c56620483bhttps://github.com/parse-community/parse-server/pull/10344https://github.com/parse-community/parse-server/pull/10345https://github.com/parse-community/parse-server/security/advisories/GHSA-mfj6-6p54-m98c