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Ruby on Rails Patches Critical Active Storage Vulnerability Affecting Image Processing

Security Affairsby @securityaffairs ()2 min read3 · 2 reads
Analyze CVE-2026-66066 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2026-66066
Unauthenticated Arbitrary File Read in Ruby on Rails Active Storage
9.530%PoC

From the original article

2 min read at securityaffairs.com

Ruby on Rails fixed a critical vulnerability that could let unauthenticated attackers read files and achieve remote code execution. Ruby on Rails has patched CVE-2026-66066, a critical vulnerability (CVSS score of 9. 5) that could allow unauthenticated attackers to read arbitrary files from vulnerable servers.

Security Affairs

By @securityaffairs · securityaffairs.com

Read the full article at Security Affairs

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