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    Critical Rails Flaw Could Let Unauthenticated Attackers Read Server Files via Image Uploads

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    Ruby on Rails has released fixes for a critical Active Storage vulnerability that could let unauthenticated attackers read arbitrary files from application servers through crafted image uploads. Tracked as CVE-2026-66066 (CVSS score: 9.5), the flaw can expose the Rails process environment and secrets such as secret_key_base, the Rails master key, database passwords, cloud storage credentials,

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    Source: https://thehackernews.com/2026/07/critical-rails-flaw-could-let.html

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