@envelop/graphql-modules has a Race Condition vulnerability
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
### Summary Context race condition when using `useGraphQLModules` plugin ### Details Related to: https://github.com/graphql-hive/graphql-modules/security/advisories/GHSA-53wg-r69p-v3r7 When 2 or more parallel requests are made which trigger the same service, the context of the requests is mixed up in the service when the context is injected via @ExecutionContext() and graphql-modules are used in Yoga with `useGraphQLModules(application)`. This issue was fixed in `graphql-modules` in `2.4.1` and `3.1.1` but using `useGraphQLModules` will bypass the `async_hooks` fix that was implemented. ### PoC Create the following `package.json` and run `npm i` ```json { "name": "poc", "scripts": { "compile": "tsc", "start": "npm run compile && node ./dist/src/index.js", "test": "npm run compile && node ./dist/test/bleedtest.js" }, "dependencies": { "@envelop/graphql-modules": "^9.0.0", "graphql-yoga": "^5.0.0", "graphql": "^16.10.0", "graphql-modules": "3.1.1", "reflect-metadata": "0.2.1", "axios": "^1.8.4" }, "devDependencies": { "@types/node": "^22.14.1", "typescript": "^5.8.3" } } ``` Define the app entrypoint: `src/index.ts` ```ts import { module } from "./module.js"; import { useGraphQLModules } from '@envelop/graphql-modules' import { createApplication } from "graphql-modules"; import { createServer } from 'node:http' import { randomUUID } from "node:crypto"; import { createYoga } from 'graphql-yoga'; const application = createApplication({ modules: [module] }) const yoga = createYoga({ schema: application.schema, plugins: [useGraphQLModules(application)], context() { return { requestId: randomUUID(), } } }) const server = createServer(yoga) server.listen(4001, '127.0.0.1', undefined, () => { console.info( `[Server] Running on http://localhost:4001/graphql` ) }) ``` Create the test module: `src/module.ts` ```ts import { createModule, gql } from "graphql-modules"; import Service from "./service.js"; const typeDefs = gql` type Book { id1: String id2: String } type Query { books: [Book] } `; export const module = createModule({ id: 'book-module', typeDefs: [typeDefs], providers: [Service], resolvers: { Query: { // return one empty book books: () => [{}], }, Book: { // return the requestId from the context id1: async (_root, _args, { injector } ) => { return injector.get(Service).get(); }, // return the requestId from the context of the service 100 ms later id2: async (_root, _args, { injector } ) => { await new Promise(resolve => setTimeout(resolve, 100)); return injector.get(Service).get() }, } } }) ``` Add the Service that's to be injected `src/service.ts` ```ts import { ExecutionContext, Injectable } from 'graphql-modules'; import 'reflect-metadata'; @Injectable() export default class Service { @ExecutionContext() private context: ExecutionContext; get() { return this.context.requestId; } } ``` Add the test case `test/bleedtest.js` ```ts import axios from 'axios'; const url = 'http://localhost:4001/graphql'; const query = `query { books { id1 id2 } }`; const makeGraphQLRequest = async () => { const response = await axios.post(url, { query }); const book = response.data.data.books[0] if (book.id1 !== book.id2) { throw new Error(`wrong response with ids ${(book.id1)} and ${(book.id2)}`) } } const numberOfRequests = 2; await Promise.all(Array.from( { length: numberOfRequests }, makeGraphQLRequest, )); ``` Then run the server with `npm run start` in one terminal and the testcase in another with `npm run test`. The returned IDs should be identical as they are both read from the context within the same request. However, there is a mismatch: ``` ❯ npm run test > [email protected] test > npm run compile && node ./dist/test/bleedtest.js > [email protected] compile > tsc file://<redacted>/dist/test/bleedtest.js:8 throw new Error(`wrong response with ids ${(book.id1)} and ${(book.id2)}`); ^ Error: wrong response with ids c2d83151-0922-4f25-a3e9-2f03acc1376a and e16c7335-0eaa-4386-b415-869ee4b05315 at makeGraphQLRequest (file://<redacted>/dist/test/bleedtest.js:8:15) at process.processTicksAndRejections (node:internal/process/task_queues:95:5) at async Promise.all (index 0) at async file://<redacted>/dist/test/bleedtest.js:12:1 ``` ### Impact Any application that uses `useGraphQLModules` from `@envelop/graphql-modules` along with services that inject the context using @ExecutionContext() from a singleton provider are at risk. The more traffic an application has, the higher the chance for parallel requests, the higher the risk.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | @envelop/graphql-modules (npm) | before 9.1.0 | 9.1.0 | Patch available | GHSA-h3hw-29fv-2x75 |
- @envelop/graphql-modules (npm) Vendor— Affected before 9.1.0 Fixed in 9.1.0 Patch available GHSA-h3hw-29fv-2x75
Remediation
- Fix · GHSA-h3hw-29fv-2x75 @envelop/graphql-modules (npm) Fixed in 9.1.0 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-h3hw-29fv-2x75
References
Other 5
- https://github.com/graphql-hive/envelop/security/advisories/GHSA-h3hw-29fv-2x75
- https://github.com/graphql-hive/graphql-modules/security/advisories/GHSA-53wg-r69p-v3r7
- https://github.com/graphql-hive/envelop/commit/ab49fa259a51d976c437e084114e070b99720ba9
- https://github.com/graphql-hive/envelop
- https://github.com/graphql-hive/envelop/releases/tag/release-1768928934700
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences