CVE-2026-53653 | Grav is a file-based Web platform. Prior to 1.7.53 and 2.0.0… | CVSS 8.7 HIGH

Description

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.

Metadata

CVE ID: CVE-2026-53653
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-09 20:50 UTC
Published: 2026-07-10 16:12 UTC
Last updated: 2026-07-10 16:12 UTC
Primary CWE: CWE-770
CWE-770: Allocation of Resources Without Limits or Throttlin…
Vendor / Product: getgrav / grav
Sources: cve.org · NVD

Severity & Metrics

8.7 HIGH CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products (1)

Vendor	Product	Platform	Versions
getgrav	grav	—	>= 2.0.0-beta.1, < 2.0.0-rc.8, < 1.7.53

Weakness (CWE)

CWE	Source	Description
CWE-770	cna	CWE-770: Allocation of Resources Without Limits or Throttling

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.7	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References (5)

https://github.com/getgrav/grav/security/advisories/GHSA-4x9g-vw65-vvf9 https://github.com/getgrav/grav/security/advisories/GHSA-4x9g-vw65-vvf9
https://github.com/getgrav/grav/commit/d9f9f0369a07ae5c96cde700c7949e1237b29cf6 https://github.com/getgrav/grav/commit/d9f9f0369a07ae5c96cde700c7949e1237b29cf6
https://github.com/getgrav/grav/commit/f4c0f42eea755cedad6f626b342c88d4cba72174 https://github.com/getgrav/grav/commit/f4c0f42eea755cedad6f626b342c88d4cba72174
https://github.com/getgrav/grav/releases/tag/1.7.53 https://github.com/getgrav/grav/releases/tag/1.7.53
https://github.com/getgrav/grav/releases/tag/2.0.0-rc.8 https://github.com/getgrav/grav/releases/tag/2.0.0-rc.8