CVE-2026-118665

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-scop...

CVE-2026-118666

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 reuses one WebSocket and replaces its single websocket.onmessag...

GHSA-434M-5HCJ-PXF3 GraphQL Tools: Per-request connection parameters persist into later users' WebSocket authentications

Stale authentication state in @graphql-tools/executor-legacy-ws: per-request extensions.connectionParams persist in executor closure state and are replayed in a later caller's connectioninit Report metadata | Field | Value | | --- | --- | | Package | @graphql-tools/executor-legacy-ws npm,...

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

Stale authentication state in @graphql-tools/executor-legacy-ws: per-request extensions.connectionParams persist in executor closure state and are replayed in a later caller's connectioninit Report metadata | Field | Value | | --- | --- | | Package | @graphql-tools/executor-legacy-ws npm,...

GHSA-MP66-8WW2-PCWM GraphQL Tools: Shared legacy executor routes one subscription's results to a different caller

Cross-tenant subscription data leak in @graphql-tools/executor-legacy-ws: a shared websocket.onmessage is replaced on every subscribe, and DATA frames are delivered without checking the protocol operation id Report metadata | Field | Value | | --- | --- | | Package |...

GraphQL Tools: Shared legacy executor routes one subscription's results to a different caller

Cross-tenant subscription data leak in @graphql-tools/executor-legacy-ws: a shared websocket.onmessage is replaced on every subscribe, and DATA frames are delivered without checking the protocol operation id Report metadata | Field | Value | | --- | --- | | Package |...

CVE-2026-118666 GraphQL Tools: Shared legacy executor routes one subscription's results to a different caller

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 reuses one WebSocket and replaces its single websocket.onmessag...

EUVD-2026-112473

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 reuses one WebSocket and replaces its single websocket.onmessag...

CVE-2026-118666

The @graphql-tools/executor-legacy-ws package (prior to version 1.1.36 ) contains a cross-tenant data leak vulnerability in the buildWSLegacyExecutor component. The root cause is twofold: the executor reuses a single WebSocket and overwrites the websocket.onmessage handler on every new subscripti...

CVE-2026-118666 GraphQL Tools: Shared legacy executor routes one subscription's results to a different caller

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 reuses one WebSocket and replaces its single websocket.onmessag...

EUVD-2026-112472

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-scop...

CVE-2026-118665

The @graphql-tools/executor-legacy-ws package is vulnerable to stale authentication state persistence due to a flaw in the buildWSLegacyExecutor component. Specifically, the executorConnectionParams object in packages/executors/legacy-ws/src/index.ts retains values from request.extensions.connect...

EUVD-2026-90922

GraphQL Tools: TLS Certificate Validation Disabled in Legacy GraphQL WebSocket Executor...

Improper Certificate Validation

Overview @graphql-tools/executor-legacy-ws is an A set of utils for faster development of GraphQL tools Affected versions of this package are vulnerable to Improper Certificate Validation via a hardcoded rejectUnauthorized: false in buildWSLegacyExecutor, which unconditionally disables TLS...

CVE-2026-103921 GraphQL Tools: TLS Certificate Validation Disabled in Legacy GraphQL WebSocket Executor

GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 1.1.35, the executor-legacy-ws buildWSLegacyExecutor function hardcodes TLS certificate rejection off for Node.js connections to wss:// endpoints. Applications using the executor directly, or url-loade...

CVE-2026-103921

GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 1.1.35, the executor-legacy-ws buildWSLegacyExecutor function hardcodes TLS certificate rejection off for Node.js connections to wss:// endpoints. Applications using the executor directly, or url-loade...

CVE-2026-103921 GraphQL Tools: TLS Certificate Validation Disabled in Legacy GraphQL WebSocket Executor

GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 1.1.35, the executor-legacy-ws buildWSLegacyExecutor function hardcodes TLS certificate rejection off for Node.js connections to wss:// endpoints. Applications using the executor directly, or url-loade...

CVE-2026-103921: Improper Certificate Validation

GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 1.1.35, the executor-legacy-ws buildWSLegacyExecutor function hardcodes TLS certificate rejection off for Node.js connections to wss:// endpoints. Applications using the executor directly, or url-loade...

PT-2026-103947

Name of the Vulnerable Software and Affected Versions GraphQL Tools versions prior to 1.1.35 Description The buildWSLegacyExecutor function in the executor-legacy-ws module hardcodes the TLS certificate rejection to off for Node.js connections to wss:// endpoints. This allows applications using t...