Vulnerabilities · InfosecFeed Brief
Critical Rails Flaw Could Let Unauthenticated Attackers Read Server Files via Image Uploads
What you need to know
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…
Source transparency
Read the original report at The Hacker News ↗
This is an InfosecFeed curated brief based on reporting from The Hacker News. InfosecFeed does not claim ownership of the original reporting.