CVE-2026-53653 | THREATINT

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.

PUBLISHED Reserved 2026-06-09 | Published 2026-07-10 | Updated 2026-07-10 | Assigner GitHub_M

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

>= 2.0.0-beta.1, < 2.0.0-rc.8

affected

< 1.7.53

affected

References

github.com/...v/grav/security/advisories/GHSA-4x9g-vw65-vvf9

github.com/...ommit/d9f9f0369a07ae5c96cde700c7949e1237b29cf6

github.com/...ommit/f4c0f42eea755cedad6f626b342c88d4cba72174

github.com/getgrav/grav/releases/tag/1.7.53

github.com/getgrav/grav/releases/tag/2.0.0-rc.8

cve.org (CVE-2026-53653)

nvd.nist.gov (CVE-2026-53653)

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