GitHub Advisoryadvisory · RubyGems
GHSA-r4mg-4433-c7g3 Active Storage allowed transformation methods that were potentially unsafe
CRITICAL
Official page ↗
- Aliases
- CVE-2025-24293
- Ecosystem
- RubyGems
- Packages
- activestorage
- Severity
- Critical
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weaknesses
- CWE-77
- Reviewed
- 2025-08-14
Affected packages
• RubyGems activestorage: >= 8.0, < 8.0.2.1 → fixed in 8.0.2.1
• RubyGems activestorage: >= 7.2, < 7.2.2.2 → fixed in 7.2.2.2
• RubyGems activestorage: >= 5.2.0, < 7.1.5.2 → fixed in 7.1.5.2
Description
Active Storage attempts to prevent the use of potentially unsafe image transformation methods and parameters by default.
The default allowed list contains three methods allowing for the circumvention of the safe defaults which enables potential command injection vulnerabilities in cases where arbitrary user supplied input is accepted as valid transformation methods or parameters.
This has been assigned the CVE identifier CVE-2025-24293.
Versions Affected: >= 5.2.0
Not affected: params[:v]) %>
```
Where the transformation method or its arguments are untrusted arbitrary input.
All users running an affected release should either upgrade or use one of the workarounds immediately.
Releases
--------
The fixed releases are available at the normal locations.
Workarounds
-----------
Consuming user supplied input for image transformation methods or their parameters is unsupported behavior and should be considered dangerous.
Strict validation of user supplied methods and parameters should be performed as well as having a strong ImageMagick security policy deployed.
Credits
-------
Thank you lio346 from Unit 515 of OPSWAT for reporting this!
Related
Alias · CVE (1)
- CVE-2025-24293 # Active Storage allowed transformation methods potentially unsafe Active Storage attempts to prevent the use of potentially unsafe image… vulnerability
Weakness · CWE (1)
- CWE-77 Improper Neutralization of Special Elements used in a Command weakness
References
- https://github.com/rails/rails/security/advisories/GHSA-r4mg-4433-c7g3 web
- https://nvd.nist.gov/vuln/detail/CVE-2025-24293 advisory
- https://github.com/rails/rails/commit/1b1adf6ee6ca0f3104fcfce79360b2ec1e06a354 web
- https://github.com/rails/rails/commit/2d612735ac0d9712fdfffaf80afa627e7295f6ce web
- https://github.com/rails/rails/commit/fb8f3a18c3d97524c0efc29150d1e5f3162fbb13 web
- https://github.com/advisories/GHSA-r4mg-4433-c7g3 advisory
- https://github.com/rails/rails package
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activestorage/CVE-2025-24293.yml web