CVE-2026-7317 Grav CMS Cache Value FileCache.php doGet deserialization
Remote attackers can exploit unsafe deserialization in Grav CMS cache handling to execute arbitrary code, requiring high complexity and permissions.
- 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-2026-7317?
CVE-2026-7317 is a low-severity unsafe deserialization vulnerability in Grav CMS, published on 28 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Grav CMS up to 1.7.49.5/2.0.0-beta.1. Affected by this vulnerability is the function FileCache::doGet of the file system/src/Grav/Framework/Cache/Adapter/FileCache.php of the component Cache Value Handler. The manipulation results in deserialization. The attack may be launched remotely. The attack requires a high level of complexity. The exploitation appears to be difficult. The exploit has been made public and could be used. Upgrading to version 2.0.0-beta.2 addresses this issue. The patch is identified as c66dfeb5f. The affected component should be upgraded.
Which versions are affected by CVE-2026-7317?
2 open source packages ship an affected version, including getgrav/grav.
| Package | Affected | Fixed in |
|---|---|---|
getgrav/grav Packagist | All versions | 2.0.0-beta.2 |
getgrav/grav Packagist | All versions | 2.0.0-beta.2 |
How do I fix CVE-2026-7317?
Upgrade getgrav/grav to 2.0.0-beta.2 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-7317 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7317 exists.
Sources
Also known as GHSA-gwfr-jfjf-92vv.