Keystone is a content management system for Node.js. Prior to 6.5.3, the findMany resolver in packages/core/src/lib/core/queries/resolvers.ts compares the signed take argument directly with graphql.maxTake, allowing a remote unauthenticated GraphQL client to provide a negative take value whose magnitude exceeds the configured bound. The bypass also applies to relationship queries and can return more records than the developer intended, potentially exhausting service resources. This issue is fixed in version 6.5.3.
History

Wed, 26 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Keystonejs
Keystonejs keystone
Vendors & Products Keystonejs
Keystonejs keystone

Fri, 21 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Description Keystone is a content management system for Node.js. Prior to 6.5.3, the findMany resolver in packages/core/src/lib/core/queries/resolvers.ts compares the signed take argument directly with graphql.maxTake, allowing a remote unauthenticated GraphQL client to provide a negative take value whose magnitude exceeds the configured bound. The bypass also applies to relationship queries and can return more records than the developer intended, potentially exhausting service resources. This issue is fixed in version 6.5.3.
Title Keystone: `graphql.maxTake` bypass with negative `take`
Weaknesses CWE-20
CWE-480
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-08-21T20:15:16.459Z

Updated: 2026-08-26T17:39:12.659Z

Reserved: 2026-07-16T19:20:28.988Z

Link: CVE-2026-63421

cve-icon Vulnrichment

Updated: 2026-08-26T17:39:08.675Z

cve-icon NVD

Status : Deferred

Published: 2026-08-21T21:17:01.643

Modified: 2026-09-09T21:06:39.057

Link: CVE-2026-63421

cve-icon Redhat

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