CVE-2026-53653: falha de alta gravidade em getgrav grav
Grav: Unauthenticated denial of service via unbounded image derivative dimensions
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.7epss 0.5%
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.
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
Produtos afetados
getgrav · gravCVEs relacionadas — getgrav grav
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Referências
https://github.com/getgrav/grav/commit/d9f9f0369a07ae5c96cde700c7949e1237b29cf6https://github.com/getgrav/grav/commit/f4c0f42eea755cedad6f626b342c88d4cba72174https://github.com/getgrav/grav/releases/tag/1.7.53https://github.com/getgrav/grav/releases/tag/2.0.0-rc.8https://github.com/getgrav/grav/security/advisories/GHSA-4x9g-vw65-vvf9