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KindaRails2Shell threatens Ruby on Rails apps (CVE-2026-66066)

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vulnerabilities

KindaRails2Shell threatens Ruby on Rails apps (CVE-2026-66066)

CVE-2026-66066, a critical vulnerability in Ruby on Rails nicknamed KindaRails2Shell, allows attackers to read sensitive files and potentially gain full server control through a malicious file uploaded via image-upload functionality. The flaw affects a widely deployed web framework and presents a significant exposure to deployed applications.

Why it matters: Development teams and hosting providers running Ruby on Rails applications should prioritize patching to prevent unauthorized file access and server compromise.

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First seen by Cybersecurity Tracker

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Correction

Correction recorded as of .

vulnerabilities

KindaRails2Shell threatens Ruby on Rails apps (CVE-2026-66066)

CVE-2026-66066, a critical vulnerability in Ruby on Rails nicknamed KindaRails2Shell, allows attackers to read sensitive files and potentially gain full server control through a malicious file uploaded via image-upload functionality. The flaw affects a widely deployed web framework and presents a significant exposure to deployed applications.

Why it matters: Development teams and hosting providers running Ruby on Rails applications should prioritize patching to prevent unauthorized file access and server compromise.

Source published
First seen by Cybersecurity Tracker

Source attribution

Glossary