CVE-2026-109324
HIGH
7,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM
6,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Description
AI Translation Available
Grav before 2.1.7 contains a denial of service vulnerability that allows authenticated media authors to exhaust memory by uploading compressed oversized raster images. Attackers can reference a Twig or Markdown transform so GD or Imagick decodes the full source without dimension checks, letting anonymous requests repeatedly cause page unavailability.
409
Improper Handling of Highly Compressed Data (Data Amplification)
IncompleteCommon Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Amplification
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Applicable Platforms
All platforms may be affected
https://github.com/getgrav/grav/security/advisories/GHSA-h253-r5hw-95r5
https://www.vulncheck.com/advisories/grav-before-2.1.7-memory-exhaustion-via-ov…