PT-2026-57217 · Getgrav · Grav

Published 2026-07-10 · Updated 2026-07-10 · CVE-2026-53653

Mitre

CVSS v4.0

8.7

High

Base vector

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

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.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-53653

Affected Products

Grav

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-53653 · Security Note
• https://github.com/getgrav/grav/releases/tag/2.0.0-rc.8 · Note
• https://github.com/getgrav/grav/commit/f4c0f42eea755cedad6f626b342c88d4cba72174 · Note
• https://github.com/getgrav/grav/releases/tag/1.7.53 · Note
• https://github.com/getgrav/grav/security/advisories/GHSA-4x9g-vw65-vvf9 · Note
• https://github.com/getgrav/grav/commit/d9f9f0369a07ae5c96cde700c7949e1237b29cf6 · Note