CVE-2026-109324

Medium

Description

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.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Grav

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-409CWE-409

How to fix

Update

getgrav grav2.1.7 or later

Vendor advisories

github.com/getgrav/grav/security/advisories/GHSA-h253-r5hw-95r5

Affected products

Product	Affected versions	Fixed in
getgrav grav	v < 2.1.7	2.1.7

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