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#10 The Hacker News general November 04, 2026 at 12:07 UTC

Critical Rails Flaw Lets Attackers Write Server Files via Crafted ImageMagick Uploads

By [email protected] (The Hacker News)

AI Summary

A critical unauthenticated arbitrary file write vulnerability was disclosed in Ruby on Rails' Active Storage component, exploitable by uploading a crafted file to applications using ImageMagick for image processing. Fixed in Rails versions 8.1.4.1 and 8.0.5.2, the flaw could allow attackers to write attacker-controlled files to the server, potentially enabling remote code execution through web shell placement or configuration tampering. Any Rails app using Active Storage with ImageMagick should upgrade immediately.

Read full article → https://thehackernews.com/2026/11/critical-rails-f…

Relevance score: 76.0/100

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