CVE-2026-33202

EUVD-2026-14634

24.03.2026, 00:16

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.

Injection

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	9.1 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Affected Products (NVD)

Vendor	Product	Version
rubyonrails	rails	𝑥 < 7.2.3.1
rubyonrails	rails	8.0.0 ≤ 𝑥 < 8.0.4.1
rubyonrails	rails	8.1.0 ≤ 𝑥 < 8.1.2.1

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

References

https://github.com/rails/rails/commit/8c9676b803820110548cdb7523800db43bc6874c

https://github.com/rails/rails/commit/955284d26e469a9c026a4eee5b21f0414ab0bccf

https://github.com/rails/rails/commit/fa19073546360856e9f4dab221fc2c5d73a45e82

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

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

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

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