CVE-2026-64664: Statamic: Missing authorization on Control Panel endpoint allows disclosure of user existence

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-06 · updated 2026-10-24
Weakness: CWE-200

Description

Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.74.1 and 6.24.0, an authenticated Control Panel user could use an endpoint intended for the user creation wizard to determine if a given email address belonged to an existing user, without having permission to view users, though the endpoint only exposed user existence and not any other user data. This issue is fixed in versions 5.74.1 and 6.24.0.

Affected products

statamic cms: from 6.0.0, < 6.24.0; before 5.74.1

References

https://github.com/statamic/cms/commit/aea68053cedab5c79d10102820b57345a7d7102e
https://github.com/statamic/cms/pull/14905
https://github.com/statamic/cms/releases/tag/v5.74.1
https://github.com/statamic/cms/releases/tag/v6.24.0
https://github.com/statamic/cms/security/advisories/GHSA-225x-3jhx-wh4q

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