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CVE-2026-33174

HIGH

7.5

Descripcion

Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when serving files through Active Storage's proxy delivery mode, the proxy controller loads the entire requested byte range into memory before sending it. A request with a large or unbounded Range header (e.g. `bytes=0-`) could cause the server to allocate memory proportional to the file size, possibly resulting in a DoS vulnerability through memory exhaustion. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/24/2026

Ultima modificacion3/24/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

rubyonrails:rails

Debilidades (CWE)

CWE-789

Referencias

https://github.com/rails/rails/commit/2cd933c366b777f873d4d590127da2f4a25e4ba5(security-advisories@github.com)

https://github.com/rails/rails/commit/42012eaaa88dfc7d0030161b2bc8074a7bbce92a(security-advisories@github.com)

https://github.com/rails/rails/commit/8159a9c3de3f27a2bcf2866b8bf9ceb9075e229b(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v7.2.3.1(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v8.0.4.1(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v8.1.2.1(security-advisories@github.com)

https://github.com/rails/rails/security/advisories/GHSA-r46p-8f7g-vvvg(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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