Serial number: AV26-1129 Date: November 5, 2026 As of November 4, 2026, Rubyonrails is affected by a vulnerability in the following product: Active Storage Prior to 8.0.5.2 Prior to 8.1.4.1 The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available. Release 8.0.5.2 · rails/rails Release 8.1.4.1 · rails/rails Possible arbitrary file write and read in Active Storage image analysis
De multiples vulnérabilités ont été découvertes dans Ruby on Rails. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à la confidentialité des données.
OverviewOn July 29, 2026, the Ruby on Rails project published a security advisory for CVE-2026-66066, an arbitrary file read in Active Storage applications that use the Vips image processor with untrusted uploads. The affected Active Storage ranges are < 7.2.3.2, >= 8.0, < 8.0.5.1, and >= 8.1, < 8.1.3.1. Vips is the default Active Storage variant processor for applications that load Rails 7.0 or later defaults. Rails 6 applications are affected only when they explicitly configure Vips.Our…