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CVE-2026-118665

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

CVSS score

8.2

EPSS probability

—

Risk score

0.8

Published

1 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

DayBreach AI Explanation

Verified against sources

GraphQL Tools Legacy WebSocket Executor Authorization Parameter Leak

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

In the GraphQL Tools legacy WebSocket executor package, per-request connection parameters persist in closure-scoped objects after connection cleanup, leading to authorization leakage.

Why does it matter?

If a single executor is reused across different authorization contexts, a subsequent request may be authenticated using an earlier caller's credentials.

What should be done?

  • Follow vendor advisories
  • Update affected packages
Chain of evidence and sources2 verified claims

buildWSLegacyExecutor işlevi, kapatılan bağlantılardan sonra connectionParams değerini saklar.

S0 · daybreach-canonicalS1 · cvelist

Yürütücünün yeniden kullanılması durumunda sonraki arayan önceki kullanıcının kimliğiyle doğrulanabilir.

S0 · daybreach-canonicalS1 · cvelist
Show the technical text from the sources

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.

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

CWE: CWE-613

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-118665 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1ardatangraphql-tools View
2@graphql-toolsexecutor-legacy-ws View
3npm@graphql-tools/executor-legacy-ws View
Total affected vendors: 3|Products: 3

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
8.2CVSS V40HIGHCVSS: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:XNVD
8.2CVSS 4.0—Vector not publishedGitHub Advisory
8.2CVSS V4_0HIGHCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NCVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-118665 is associated with the following CWEs:

CWE-613: Common Weakness Enumeration Entry CWE-613

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-118665 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://github.com/ardatan/graphql-tools/security/advisories/GHSA-434m-5hcj-pxf3vendor-advisoryhttps://github.com/ardatan/graphql-tools/pull/8480vendor-advisoryhttps://github.com/ardatan/graphql-tools/commit/c2f226e6f68236be9e4a577f29faeaa92547458bvendor-advisoryhttps://github.com/ardatan/graphql-tools/releases/tag/@graphql-tools/executor-legacy-ws@1.1.36vendor-advisoryhttps://github.com/advisories/GHSA-434m-5hcj-pxf3vendor-advisory

CVSS Vector Radar Chart

8.2 / 10
Attack VectorNetworkComplexityHighPrivilegesNoneUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

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
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)High
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

A
ardatan logo
ardatan
@
@graphql-tools logo
@graphql-tools
N
npm logo
npm

Weakness Type (CWE & CAPEC)

CWE-613

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CVE-2026-118665 · GraphQL Tools: Per-request connection…