Improper Handling of Highly Compressed Data (Data Amplification) Affecting getgrav/grav package, versions <2.1.7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-GETGRAVGRAV-21717129
- published26 Oct 2026
- disclosed12 Oct 2026
- creditUnknown
Introduced: 12 Oct 2026
NewCVE-2026-109324 (opens in a new tab)How to fix?
Upgrade getgrav/grav to version 2.1.7 or higher.
Overview
getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS.
Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) via the image transformation process. An attacker can exhaust system memory by uploading compressed oversized raster images and referencing a transform so that image processing libraries decode the full source without dimension checks, allowing repeated requests to cause service unavailability.