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EUVD-2026-160120

2026-10-10T02:09:21.578951+00:00

EUVD-2026-160120

fkie_cve-2024-43783

2026-10-10T02:09:21.578984+00:00

The Apollo Router Core is a configurable, high-performance graph router written in Rust to run a federated supergraph that uses Apollo Federation 2. Instances of the Apollo Router running versions >=1.21.0 and < 1.52.1 are impacted by a denial of service vulnerability if _all_ of the following are true: 1. The Apollo Router has been configured to support [External Coprocessing](https://www.apollographql.com/docs/router/customizations/coprocessor). 2. The Apollo Router has been configured to send request bodies to coprocessors. This is a non-default configuration and must be configured intentionally by administrators. Instances of the Apollo Router running versions >=1.7.0 and <1.52.1 are impacted by a denial-of-service vulnerability if all of the following are true: 1. Router has been configured to use a custom-developed Native Rust Plugin. 2. The plugin accesses Request.router_request in the RouterService layer. 3. You are accumulating the body from Request.router_request into memory. If using an impacted configuration, the Router will load entire HTTP request bodies into memory without respect to other HTTP request size-limiting configurations like limits.http_max_request_bytes. This can cause the Router to be out-of-memory (OOM) terminated if a sufficiently large request is sent to the Router. By default, the Router sets limits.http_max_request_bytes to 2 MB. If you have an impacted configuration as defined above, please upgrade to at least Apollo Router 1.52.1. If you ca…

GHSA-x6xq-whh3-gg32 — Apollo Router Coprocessors may cause Denial-of-Service when handling request bodies

2026-10-10T02:09:21.579030+00:00

Affected: crates.io: apollo-router

## Impact

Instances of the Apollo Router using either of the following may be impacted by a denial-of-service vulnerability.

1. External Coprocessing with specific configurations; or 2. Native Rust Plugins accessing the Router request body in the RouterService layer

Router customizations using Rhai scripts are **not** impacted.

### When using External Coprocessing:

Instances of the Apollo Router running versions >=1.21.0 and <1.52.1 are impacted by a denial-of-service vulnerability if **all** of the following are true:

1. Router has been configured to support External Coprocessing. 2. Router has been configured to send request bodies to coprocessors. This is a non-default configuration and must be configured intentionally by administrators.

You can identify if you are impacted by reviewing your router's configuration YAML for the following config:

```yaml ... coprocessor: url: http://localhost:9000 # likely different in your environment router: request: body: true # this must be set to 'true' to be impacted ... ``` External Coprocessing was initially made available as an experimental feature with [Router version 1.21.0](https://github.com/apollographql/router/releases/tag/v1.21.0) on 2023-06-20 and was made generally available with [Router version 1.38.0](https://github.com/apollographql/router/releases/tag/v1.38.0) on 2024-01-19. More information about the Router’s [External Coprocessing feature is available here](https://www.apollographql.com/docs/ro…