Rails Active Storage has a possible DoS vulnerability in proxy mode via multi-range requests
8Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 2.3epss 0.4%
probabilidad de explotación
0.4%top 64% de las CVE
explotación observada
noninguna fuente lo reporta
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
Active Storage's proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of small ranges causes disproportionate CPU usage compared to a normal request for the same file, possibly resulting in a DoS vulnerability. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Productos afectados
rails · activestorageReferencias
https://github.com/rails/rails/releases/tag/v7.2.3.1https://github.com/rails/rails/releases/tag/v8.0.4.1https://github.com/rails/rails/releases/tag/v8.1.2.1https://github.com/rails/rails/security/advisories/GHSA-p9fm-f462-ggrghttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/activestorage/CVE-2026-33658.yml