Improper Authorization in Craft CMS - CVE-2026-84799
Published: August 19, 2026 / Updated: September 14, 2026
Vulnerability identifier: #VU144281
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84799
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper authorization in native GraphQL element-to-user relations when resolving related user fields through GraphQL queries. A remote user can query author, authors, uploader, draftCreator, or revisionCreator fields to disclose sensitive information.
The issue affects user-group scoping for related user records and can expose usernames, email addresses, and full names outside the intended GraphQL schema scope.
Affected software
Craft CMS
How to mitigate CVE-2026-84799
Install security update from vendor's website.
Craft CMS - update to 99.99.1