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

Date Oct 28, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product npm ยท @graphql-tools/executor-legacy-ws
CVE CVE-2026-118665
High-risk advisory CVE-2026-118665

Summary

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

Why it matters

GitHub has published a reviewed security advisory for @graphql-tools/executor-legacy-ws. Prioritize it with other application dependency updates, especially because EPSS places it in the 33% percentile.

Operator check

Check whether @graphql-tools/executor-legacy-ws is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.2. EPSS probability: 0.4%; percentile: 33%.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.