---
title: "CVE-2026-118665: GraphQL Tools - Authentication Bypass"
description: "GraphQL Tools legacy WebSocket executor < 1.1.36 contains an authorization bypass caused by retention of connectionParams in closure-scoped executorConnectionParams, letting attackers authenticate as previous users when executors are reused, exploit requires executor reuse across different authorization contexts."
url: https://panop.io/threat-heartbeat/CVE-2026-118665/
---

# CVE-2026-118665 GraphQL Tools - Authentication Bypass

GraphQL Tools legacy WebSocket executor < 1.1.36 contains an authorization bypass caused by retention of connectionParams in closure-scoped executorConnectionParams, letting attackers authenticate as previous users when executors are reused, exploit requires executor reuse across different authorization contexts.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-118665)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

28 October 2026

Updated

29 October 2026

Weakness

[CWE-613](https://cwe.mitre.org/data/definitions/613.html)

## Vendor fix

Upgrade to version 1.1.36 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-118665](https://nvd.nist.gov/vuln/detail/CVE-2026-118665)
- [https://github.com/ardatan/graphql-tools/commit/c2f226e6f68236be9e4a577f29faeaa92547458b](https://github.com/ardatan/graphql-tools/commit/c2f226e6f68236be9e4a577f29faeaa92547458b)
- [https://github.com/ardatan/graphql-tools/pull/8480](https://github.com/ardatan/graphql-tools/pull/8480)
- [https://github.com/ardatan/graphql-tools/releases/tag/@graphql-tools/executor-legacy-ws@1.1.36](https://github.com/ardatan/graphql-tools/releases/tag/@graphql-tools/executor-legacy-ws@1.1.36)
- [https://github.com/ardatan/graphql-tools/security/advisories/GHSA-434m-5hcj-pxf3](https://github.com/ardatan/graphql-tools/security/advisories/GHSA-434m-5hcj-pxf3)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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