HighGHSA-rw9x-pxqx-q789CVE-2026-27939

Statamic allows Authenticated Control Panel users to escalate privileges via elevated session bypass

Published 27 Feb 2026 · Updated 4 Mar 2026

Affected package

statamic/cmsComposer
Affected
>=6.0.0 <6.4.0
Fixed in
6.4.0
Update to the fixed version for your release line, for example:composer require statamic/cms:^6.4.0

Details

Impact

Authenticated Control Panel users may under certain conditions obtain elevated privileges without completing the intended verification step. This can allow access to sensitive operations and, depending on the user’s existing permissions, may lead to privilege escalation.

Patches

This has been fixed in 6.4.0.

Is GHSA-rw9x-pxqx-q789 in any of your client repos?

Checking one package by hand is fine. Checking it across forty client projects is not. NPMscan reads the lockfiles in every GitHub repo you pick, finds each project with an affected statamic/cms, and gives you the command that fixes it.

References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.