CVE-2026-109324

EUVD-2026-97626
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.
Data Amplification
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
getgravgrav
𝑥
< 2.1.7
CNA
Common Weakness Enumeration
References
https://github.com/getgrav/grav/security/advisories/GHSA-h253-r5hw-95r5
https://www.vulncheck.com/advisories/grav-before-2.1.7-memory-exhaustion-via-oversized-image-transforms