getgrav Grav up to 2.0.1 Twig Sandbox admin.pages offsetGet config sandbox

Summaryinfo

A vulnerability described as problematic has been identified in getgrav Grav up to 2.0.1. This affects the function offsetGet of the file admin.pages of the component Twig Sandbox. Such manipulation of the argument config leads to sandbox. This vulnerability is uniquely identified as CVE-2026-61450. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in getgrav Grav up to 2.0.1. It has been rated as problematic. Affected by this issue is the function offsetGet of the file admin.pages of the component Twig Sandbox. The manipulation of the argument config with an unknown input leads to a sandbox vulnerability. Using CWE to declare the problem leads to CWE-265. Impacted is confidentiality. CVE summarizes:

Grav before 2.0.2 contains a Twig sandbox bypass that allows a page author (any admin.pages user, or anyone able to write to user/pages) to exfiltrate configuration secrets. Although the sandbox replaces the 'config' variable with a redacted facade and strips Config::get/toArray from the method allowlist, the raw container remains accessible via the allow-listed grav.offsetGet('config'), which returns the real Config object. Allow-listed object-dumping filters (json_encode, print_r, yaml_encode) then serialize that object at the PHP level without invoking the sandbox method gate, exposing the full config tree including plugin secrets such as SMTP credentials, API keys, and plugin DB credentials. This is an incomplete fix for GHSA-j274-39qw-32c9.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-61450 since 07/09/2026. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1611 by the MITRE ATT&CK project.

Upgrading to version 2.0.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-42903). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• getgrav

Name

• Grav

Version

• 2.0.0
• 2.0.1

Website

• Product: https://github.com/getgrav/grav/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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