CVE-2026-61842 Grav: Twig sandbox config exfiltration via grav.offsetGet + dump filter (CVE-2026-44738 bypass)
A page-author can exfiltrate sensitive configuration secrets like API keys and credentials via Twig sandbox bypass in Grav.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-61842?
CVE-2026-61842 is a medium-severity vulnerability in getgrav grav, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Grav is a file-based Web platform. Prior to 2.0.2, the Grav Twig content sandbox permits grav.offsetGet('config') to return the raw configuration object and permits json_encode, print_r, yaml_encode, and string filters to serialize that object without passing through GravSecurityPolicy::checkMethodAllowed. A user with page-author permissions can render sandboxed content that exposes plugins.* configuration secrets, including SMTP credentials, API keys, and plugin database credentials. This issue is fixed in version 2.0.2.
Weakness: CWE-200
Which versions are affected by CVE-2026-61842?
How do I fix CVE-2026-61842?
Upgrade to a fixed version.
Is CVE-2026-61842 being exploited?
There is no known exploitation of CVE-2026-61842 in the wild and no public exploit code.