CVE-2026-10802: Keystonejs Keystone

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Keystonejs Keystone: version 20260319 only

Published 2026-06-04. Last modified 2026-07-22.