Vulnerability in Getgrav Grav
CVE-2026-109324
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/getgrav/grav/security/advisories/GHSA-h253-r5hw-95r5 (vendor-advisory)
- www.vulncheck.com/advisories/grav-before-2.1.7-memory-exhaustion-via-oversized-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109324?
- CVE-2026-109324 is a medium-severity vulnerability in Getgrav Grav, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 6.5/10. Published 2026-10-12.
- How severe is CVE-2026-109324?
- Medium severity. CVSS v3 base score is 6.5 out of 10.