A AegiFlow
HIGHCVSS 7.5EPSS 0.5%

CVE-2026-63421

CVE-2026-63421 updated by NVD

Published
2026-08-21
Modified
2026-09-11
EPSS percentile
39%
Sources
github-advisory, nvd

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.

Affected packages

EcosystemPackageAffected versionsFixed versions
npm@keystone-6/core6.5.3

Remediation: Upgrade to 6.5.3 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.