Rails fixes critical Active Storage flaw with RCE risk
🛡️ The Rails project patched a critical Active Storage vulnerability (CVE-2026-66066) that can let unauthenticated attackers read arbitrary files and potentially achieve remote code execution when libvips is used. The flaw affects multiple Rails branches before specified patch releases and requires accepting uploads from untrusted users. Administrators should upgrade libvips to 8.13+, apply Rails updates, and rotate exposed secrets. ImageMagick users are not affected by this vector.