CVE-2026-40476

graphql-go is a Go implementation of GraphQL. In versions 15.31.4 and below, the OverlappingFieldsCanBeMerged validation rule performs On² pairwise comparisons of fields sharing the same response name. An attacker can send a query with thousands of repeated identical fields, causing excessive CPU...

GHSA-9PV7-VFVM-6VR7 graphql Uncontrolled Resource Consumption vulnerability

Versions of the package graphql from 16.3.0 and before 16.8.1 are vulnerable to Denial of Service DoS due to insufficient checks in the OverlappingFieldsCanBeMergedRule.ts file when parsing large queries. This vulnerability allows an attacker to degrade system performance. Note: It was not proven...