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.
Scores
CVSS v3
9.1
EPSS
0.0003
EPSS Percentile
7.9%
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 (5)
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
8.1.0.beta1 - 8.1.2.1RubyGems
rubyonrails/rails
< 7.2.3.1
Published
Mar 24, 2026
Tracked Since
Mar 24, 2026