CVE-2026-109324

MEDIUM 6.5

Grav before 2.1.7 Memory Exhaustion via Oversized Image Transforms

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-409
Vendor	getgrav
Product	grav
Published	Oct 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

getgrav / grav

0 < 2.1.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/getgrav/grav/security/advisories/GHSA-h253-r5hw-95r5 vulncheck.com: https://www.vulncheck.com/advisories/grav-before-2.1.7-memory-exhaustion-via-oversized-image-transforms

Credits

🔍 manus-pi 🔍 manus-use