CVE-2026-55794
Craft CMS: Potential authenticated Remote Code Execution via referrer redirect
Description
Craft CMS is a content management system (CMS). In versions 5.9.0 and above prior to 5.10.0, control panel users with the ability to edit entries can execute unsandboxed Twig code via the HTTP Referrer header, potentially leading to authenticated RCE. The issue happens when a user is saving entries. Strings for a signed redirect URL are being compiled as a Twig template via renderObjectTemplate(), and while a sandboxed alternative already exists (renderSandboxedObjectTemplate()), it is not used in this case. This signed URL can be specified by users, as it is reflected in the “Referer” HTTP request header, which is under attacker control. This issue has been fixed in version 5.10.0.
INFO
Published Date :
July 1, 2026, 11:26 p.m.
Last Modified :
July 1, 2026, 11:26 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-55794
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Craft CMS to version 5.10.0 or later.
- Verify update includes the fix for Twig code execution.
- Monitor for any unauthorized access or code execution.
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CVE-2026-55794 vulnerability anywhere in the article.