CVE-2025-24293

Name	CVE-2025-24293
Description	# Active Storage allowed transformation methods potentially unsafe Active Storage attempts to prevent the use of potentially unsafe image transformation methods and parameters by default. The default allowed list contains three methods allow 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. Impact ------ This vulnerability impacts applications that use Active Storage with the image_processing processing gem in addition to mini_magick as the image processor. Vulnerable code will look something similar to this: ``` <%= image_tag blob.variant(params[:t] => 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. 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](https://imagemagick.org/script/security-policy.php) deployed. Credits ------- Thank you [lio346](https://hackerone.com/lio346) for reporting this!
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4416-1, DSA-6090-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rails (PTS)	bullseye	2:6.0.3.7+dfsg-2+deb11u2	vulnerable
	bullseye (security)	2:6.0.3.7+dfsg-2+deb11u4	fixed
	bookworm, bookworm (security)	2:6.1.7.10+dfsg-1~deb12u2	fixed
	trixie (security), trixie	2:7.2.2.2+dfsg-2~deb13u1	fixed
	forky, sid	2:7.2.2.2+dfsg-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
rails	source	bullseye	2:6.0.3.7+dfsg-2+deb11u4	DLA-4416-1
rails	source	bookworm	2:6.1.7.10+dfsg-1~deb12u2	DSA-6090-1
rails	source	trixie	2:7.2.2.2+dfsg-2~deb13u1	DSA-6090-1
rails	source	(unstable)	2:7.2.2.2+dfsg-1

Notes

https://github.com/rails/rails/security/advisories/GHSA-r4mg-4433-c7g3
https://github.com/rails/rails/commit/2d612735ac0d9712fdfffaf80afa627e7295f6ce (v8.0.2.1)
https://github.com/rails/rails/commit/568c0bc2f1e74c65d150a84b89a080949bf9eb9b (v8.0.2.1)
https://github.com/rails/rails/commit/fb8f3a18c3d97524c0efc29150d1e5f3162fbb13 (v7.2.2.2)
https://github.com/rails/rails/commit/6a944ca4805e72050a0fbb1a461534eb760d3202 (v7.2.2.2)
https://github.com/rails/rails/commit/1b1adf6ee6ca0f3104fcfce79360b2ec1e06a354 (v7.1.5.2)
https://github.com/rails/rails/commit/3beef20013736fd52c5dcfdf061f7999ba318290 (v7.1.5.2)