Description
Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Storage's `DiskService#delete_prefixed` passes blob keys directly to `Dir.glob` without escaping glob metacharacters. If a blob key contains attacker-controlled input or custom-generated keys with glob metacharacters, it may be possible to delete unintended files from the storage directory. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
References (7)
Core 7
Core References
Vendor Advisory x_refsource_confirm
https://github.com/rails/rails/security/advisories/GHSA-73f9-jhhh-hr5m
Patch x_refsource_misc
https://github.com/rails/rails/commit/8c9676b803820110548cdb7523800db43bc6874c
Patch x_refsource_misc
https://github.com/rails/rails/commit/955284d26e469a9c026a4eee5b21f0414ab0bccf
Patch x_refsource_misc
https://github.com/rails/rails/commit/fa19073546360856e9f4dab221fc2c5d73a45e82
Release Notes x_refsource_misc
https://github.com/rails/rails/releases/tag/v7.2.3.1
Release Notes x_refsource_misc
https://github.com/rails/rails/releases/tag/v8.0.4.1
Release Notes x_refsource_misc
https://github.com/rails/rails/releases/tag/v8.1.2.1
Scores
CVSS v3
9.1
EPSS
0.0065
EPSS Percentile
46.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-74
Status
published
Products (7)
rails/activestorage
< 7.2.3.1
rails/activestorage
>= 8.0.0.beta1, < 8.0.4.1
rails/activestorage
>= 8.1.0.beta1, < 8.1.2.1
rubygems/activestorage
0 - 7.2.3.1RubyGems
rubygems/activestorage
8.0.0.beta1 - 8.0.4.1RubyGems
rubygems/activestorage
8.1.0.beta1 - 8.1.2.1RubyGems
rubyonrails/rails
< 7.2.3.1
Published
Mar 24, 2026
Tracked Since
Mar 24, 2026