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CVE-2025-24293 Rails CVE debrief

CVE-2025-24293 is a critical vulnerability in Active Storage's image transformation methods, potentially allowing command injection attacks. The vulnerability impacts applications using Active Storage with the image_processing processing gem and mini_magick as the image processor. Vulnerable code may resemble `<%= image_tag blob.variant(params[:t] => params[:v]) %>`, where untrusted user input is accepted as transformation methods or parameters. To mitigate, strict validation of user-supplied methods and parameters is necessary, along with a strong ImageMagick security policy. Users should upgrade or apply workarounds immediately.

Vendor
Rails
Product
activestorage
CVSS
CRITICAL 9.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-01-30
Original CVE updated
2026-06-30
Advisory published
2026-01-30
Advisory updated
2026-06-30

Who should care

Developers and administrators of applications using Active Storage with image_processing and mini_magick should be aware of this vulnerability. They should assess their applications for potential exposure and take immediate action to mitigate the risk.

Technical summary

The vulnerability arises from Active Storage's default allowed list of image transformation methods, which can be circumvented, enabling potential command injection vulnerabilities. This affects applications using Active Storage with the image_processing processing gem and mini_magick as the image processor. The vulnerability is characterized by a CVSS score of 9.2 and a severity of CRITICAL. The CVE record and NVD detail provide further technical information.

Defensive priority

High priority should be given to addressing this vulnerability, as it allows for potential command injection attacks. Immediate action is recommended to mitigate the risk.

Recommended defensive actions

  • Upgrade to a patched version of Active Storage or apply workarounds immediately.
  • Perform strict validation of user-supplied transformation methods and parameters.
  • Deploy a strong ImageMagick security policy.
  • Review and update vulnerable code to prevent untrusted user input from being accepted as transformation methods or parameters.
  • Monitor and track potential exploitation attempts.

Evidence notes

The CVE record and NVD detail provide official information on the vulnerability. Additional sources, including GitHub advisories and Red Hat security advisories, offer further context and mitigation guidance.

Official resources

This article is AI-assisted and based on the supplied source corpus.