Uncontrolled Recursion Affecting strawberry-graphql package, versions [0.71.0,0.315.7)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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Start learning- Snyk IDSNYK-PYTHON-STRAWBERRYGRAPHQL-17173220
- published5 Jun 2026
- disclosed4 Jun 2026
- creditgonas0919
Introduced: 4 Jun 2026
CVE-2026-47706 (opens in a new tab)How to fix?
Upgrade strawberry-graphql to version 0.315.7 or higher.
Overview
strawberry-graphql is an A library for creating GraphQL APIs
Affected versions of this package are vulnerable to Uncontrolled Recursion in the determine_depth function when processing GraphQL queries containing circular fragment references. An attacker can exhaust server CPU resources and cause the validation process to crash by submitting specially crafted queries with recursive fragment spreads.
PoC
import strawberry
from fastapi import FastAPI
from strawberry.fastapi import GraphQLRouter
from strawberry.extensions import QueryDepthLimiter
@strawberry.type
class User:
name: str = "GONA"
@strawberry.type
class Query:
@strawberry.field
def user(self) -> User:
return User()
# Enable depth limiting
schema = strawberry.Schema(
query=Query,
extensions=[QueryDepthLimiter(max_depth=10)]
)
app = FastAPI()
app.include_router(GraphQLRouter(schema), prefix="/graphql")