CVE-2026-84799: Craft CMS CMS

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

Craft CMS before 5.11.0 fails to enforce user-group scope filters on native GraphQL user relations including author, authors, uploader, draftCreator, and revisionCreator fields. Attackers with a scoped GraphQL token can query these relations to read usernames, email addresses, and full names of any content author or uploader including administrators.

Affected products

• Craft CMS CMS: from 5.0.0-RC1, before 5.11.0 (fixed in 5.11.0)

Published 2026-09-02. Last modified 2026-09-04.