CVE-2026-10802: Keystone GraphQL API Endpoint Lacks Query Vulnerability

LOW
Advisory Identifier: GHSA-45jq-c8xm-jfw9
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CVSS 4.3
CWE-400
Published
Advisory Summary

CVE-2026-10802 is a LOW (CVSS 4.3) graphql api endpoint lacks query vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Keystone libraries in the npm ecosystem. The issue involves graphql api endpoint lacks query depth limits. Remediation is available in the latest vendor maintenance releases.

CVE-2026-10802 at a Glance

CVE Identifier CVE-2026-10802
GHSA Identifier GHSA-45jq-c8xm-jfw9
Severity LOW
CVSS v3.1 Base Score 4.3
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Keystone
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 4.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2026-10802

To remediate this vulnerability, upgrade all affected Keystone dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@keystone-6/core fixed: Latest secure release 
npm install @keystone-6/core@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @keystone-6/core

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-10802, inspect your project dependencies using npm:

npm ls @keystone-6/core

Analyze the terminal output to locate any version of Keystone in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls @keystone-6/core command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Keystone, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability was detected in keystonejs keystone up to 20260319. This vulnerability affects unknown code in the library packages/core/src/lib/core/queries/output-field.ts of the component GraphQL API Endpoint. The manipulation results in resource consumption. It is possible to launch the attack remotely. The exploit is now public and may be used. The pull request to fix this issue awaits acceptance.

CVE-2026-10802 Affected Keystone Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
@keystone-6/core
npm/@keystone-6/core
npm
≤ 6.5.3

References

NVD — CVE-2026-10802 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10802
Keystone Source Repository REPOSITORY
https://github.com/keystonejs/keystone/issues/9789
Keystone Source Repository REPOSITORY
https://github.com/keystonejs/keystone/pull/9831
Keystone Source Repository REPOSITORY
https://gist.github.com/nedlir/0431275665076772844ebfe5167e54f6
Keystone Source Repository REPOSITORY
https://github.com/keystonejs/keystone
vuldb.com/cve/cve-2026-10802 WEB
https://vuldb.com/cve/CVE-2026-10802
vuldb.com/submit/831461 WEB
https://vuldb.com/submit/831461
vuldb.com/vuln/368251 WEB
https://vuldb.com/vuln/368251
vuldb.com/vuln/368251/cti WEB
https://vuldb.com/vuln/368251/cti

Frequently Asked Questions

What is CVE-2026-10802?
CVE-2026-10802 is a security vulnerability in Keystone involving GraphQL API Endpoint Lacks Query Depth Limits under CWE-400: Uncontrolled Resource Consumption.
Which Keystone versions are affected?
Affected versions include releases prior to current release patches across affected packages: @keystone-6/core.
What version fixes CVE-2026-10802?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is @keystone-6/core affected?
Yes, @keystone-6/core is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-10802?
CVE-2026-10802 has a CVSS v3.1 base score of 4.3 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-10802?
CVE-2026-10802 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check npm dependencies for CVE-2026-10802?
Run the dependency tree command: 'npm ls @keystone-6/core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-45jq-c8xm-jfw9",
  "modified" : "2026-07-14T20:53:52Z",
  "published" : "2026-06-04T12:30:26Z",
  "aliases" : [ "CVE-2026-10802" ],
  "summary" : "Keystone: GraphQL API Endpoint Lacks Query Depth Limits",
  "details" : "A vulnerability was detected in keystonejs keystone up to 20260319. This vulnerability affects unknown code in the library packages/core/src/lib/core/queries/output-field.ts of the component GraphQL API Endpoint. The manipulation results in resource consumption. It is possible to launch the attack remotely. The exploit is now public and may be used. The pull request to fix this issue awaits acceptance.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@keystone-6/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "6.5.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-10802"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keystonejs/keystone/issues/9789"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keystonejs/keystone/pull/9831"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/nedlir/0431275665076772844ebfe5167e54f6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keystonejs/keystone"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/cve/CVE-2026-10802"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/831461"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/368251"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/368251/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-14T20:53:52Z",
    "nvd_published_at" : "2026-06-04T12:16:24Z"
  }
}