Resource exhaustion in Getgrav Grav

CVE-2026-53653

Grav is a file-based Web platform. Prior to 1.7.53 and 2.0.0-rc.8, Grav allows an unauthenticated visitor to exhaust server memory and CPU by requesting image derivatives with oversized dimensions through URL query image actions such as forceResize in Grav::fallbackUrl, which passes request parameters to ImageMedium magic actions without a dimension or pixel ceiling. This issue is fixed in versions 1.7.53 and 2.0.0-rc.8.

EPSS: 0.005 (42.0th percentile) — read the EPSS interpretation.

Affected products

  • Getgrav Grav — versions >= 2.0.0-beta.1, < 2.0.0-rc.8, < 1.7.53

Weakness classification (CWE)

References