CVE-2026-84799 Craft CMS before 5.11.0 PII Disclosure via GraphQL User Relations
Attackers with scoped GraphQL tokens can bypass user-group filters to read sensitive PII of any content author or administrator in Craft CMS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84799?
CVE-2026-84799 is a medium-severity vulnerability in craftcms cms, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-285
Which versions are affected by CVE-2026-84799?
How do I fix CVE-2026-84799?
No fix has been published for CVE-2026-84799 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-84799 being exploited?
There is no known exploitation of CVE-2026-84799 in the wild and no public exploit code.
Sources
Also known as GHSA-4qrm-jp7g-x2p5, GHSA-4w9w-3x96-7ghp.