CVE-2026-118665

UNKNOWN 0.0

GraphQL Tools: Per-request connection parameters persist into later users' WebSocket authentications

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to version 1.1.36 of the GraphQL Tools legacy WebSocket executor package, buildWSLegacyExecutor in packages/executors/legacy-ws/src/index.ts retains request.extensions.connectionParams in the closure-scoped executorConnectionParams object after cleanupWebsocket closes a connection. When one executor is reused across different authorization contexts, a later request that omits a sensitive key can send an earlier caller's Authorization or tenant value in its connection_init payload, causing the downstream server to authenticate the later caller as the earlier user. Applications that create a new executor for every request are not affected. This issue is fixed in version 1.1.36 of the GraphQL Tools legacy WebSocket executor package.

CWE	CWE-613
Vendor	ardatan
Product	graphql-tools
Published	Oct 28, 2026

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Affected Versions

ardatan / graphql-tools

< 9.0.36

@graphql-tools / executor-legacy-ws

< 1.1.36

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/ardatan/graphql-tools/security/advisories/GHSA-434m-5hcj-pxf3 github.com: https://github.com/ardatan/graphql-tools/pull/8480 github.com: https://github.com/ardatan/graphql-tools/commit/c2f226e6f68236be9e4a577f29faeaa92547458b github.com: https://github.com/ardatan/graphql-tools/releases/tag/@graphql-tools/[email protected]