Home

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.

PUBLISHED Reserved 2026-03-17 | Published 2026-03-23 | Updated 2026-03-24 | Assigner GitHub_M




MEDIUM: 6.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U

Problem types

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Product status

>= 8.1.0.beta1, < 8.1.2.1
affected

>= 8.0.0.beta1, < 8.0.4.1
affected

< 7.2.3.1
affected

References

github.com/.../rails/security/advisories/GHSA-73f9-jhhh-hr5m

github.com/...ommit/8c9676b803820110548cdb7523800db43bc6874c

github.com/...ommit/955284d26e469a9c026a4eee5b21f0414ab0bccf

github.com/...ommit/fa19073546360856e9f4dab221fc2c5d73a45e82

github.com/rails/rails/releases/tag/v7.2.3.1

github.com/rails/rails/releases/tag/v8.0.4.1

github.com/rails/rails/releases/tag/v8.1.2.1

cve.org (CVE-2026-33202)

nvd.nist.gov (CVE-2026-33202)

Download JSON