CVE-2026-35523

CVE-2026-35523 affects Strawberry GraphQL up to version 0.312.3, where the legacy graphql-ws WebSocket subprotocol may bypass authentication on WebSocket subscription endpoints. The root cause is that the graphql-ws handshake (connection_init) is not verified before processing start/subscription ...

GHSA-HV3W-M4G2-5X77 strawberry-graphql: Denial of Service via unbounded WebSocket subscriptions

Strawberry GraphQL's WebSocket subscription handlers for both the graphql-transport-ws and legacy graphql-ws protocols allocate an asyncio.Task and associated Operation object for every incoming subscribe message without enforcing any limit on the number of active subscriptions per connection. An...