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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
rails activestorage affected
Version Status Constraints
>= 8.1.0.beta1, < 8.1.2.1 affected —
>= 8.0.0.beta1, < 8.0.4.1 affected —
< 7.2.3.1 affected —

No data.

No data.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-73f9-jhhh-hr5m Rails Active Storage has possible glob injection in its DiskService
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/rails/rails/commit/8c9676b803820110548cdb7523800db43bc6874c cve-icon cve-icon
https://github.com/rails/rails/commit/955284d26e469a9c026a4eee5b21f0414ab0bccf cve-icon cve-icon
https://github.com/rails/rails/commit/fa19073546360856e9f4dab221fc2c5d73a45e82 cve-icon cve-icon
https://github.com/rails/rails/releases/tag/v7.2.3.1 cve-icon cve-icon
https://github.com/rails/rails/releases/tag/v8.0.4.1 cve-icon cve-icon
https://github.com/rails/rails/releases/tag/v8.1.2.1 cve-icon cve-icon
https://github.com/rails/rails/security/advisories/GHSA-73f9-jhhh-hr5m cve-icon cve-icon
History

Tue, 24 Mar 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Rails
Rails activestorage
Vendors & Products Rails
Rails activestorage

Tue, 24 Mar 2026 02:30:00 +0000

Type Values Removed Values Added
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.
Title Rails Active Storage has possible glob injection in its DiskService
Weaknesses CWE-74
References
Metrics cvssV4_0

{'score': 6.6, 'vector': 'CVSS: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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-23T23:34:52.715Z

Reserved: 2026-03-17T23:23:58.312Z

Link: CVE-2026-33202

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-24T00:16:29.157

Modified: 2026-03-24T00:16:29.157

Link: CVE-2026-33202

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-24T10:29:51Z

Weaknesses