GitHub Advisoryadvisory · RubyGems

GHSA-r4mg-4433-c7g3 Active Storage allowed transformation methods that were potentially unsafe

CRITICAL Published 2025-08-14 Modified 2026-01-31 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