activestorage: Code injection in Active Storage when used in conjunction with the image_processing gem
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
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| Rails | activestorage | unaffected |
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No data.
No data.
| Vendor | Product | Versions |
|---|---|---|
| Rails | Activestorage | — |
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4416-1 | rails security update |
Debian DSA |
DSA-6090-1 | rails security update |
EUVD |
EUVD-2025-29509 | Active Storage allowed transformation methods that were potentially unsafe |
Github GHSA |
GHSA-r4mg-4433-c7g3 | Active Storage allowed transformation methods that were potentially unsafe |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 5.6% (5.579% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Rails
Rails activestorage |
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| Vendors & Products |
Rails
Rails activestorage |
| Type | Values Removed | Values Added |
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| Title | activestorage: Code injection in Active Storage when used in conjunction with the image_processing gem | |
| Weaknesses | CWE-88 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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| Type | Values Removed | Values Added |
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| Weaknesses | CWE-77 CWE-94 |
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| Metrics |
ssvc
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| 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! | |
| References |
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| Metrics |
cvssV4_0
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