CVE-2026-63421 (GCVE-0-2026-63421)
Vulnerability from cvelistv5
Published
2026-08-21 20:15
Modified
2026-08-26 17:39
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-20 - Improper Input Validation
  • CWE-480 - Use of Incorrect Operator
Summary
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.
References
Impacted products
Vendor Product Version
keystonejs keystone Version: < 6.5.3
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