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CVE-2026-33202

Rails Active Storage has possible glob injection in its DiskService

Published: Mar 23, 2026Updated: Mar 24, 2026 Sources: CVE List NVD BDUCWE-74
9.1CRITICAL
NVD MITRE
EPSS Score
0.6%
Top 53.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-74

Affected Products

РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Ruby on RailsRails Core Team
Library
OSS Libraries / web-framework
railsrubyonrailsOSS Libraries
activestoragerails
Library
OSS Libraries / web-framework
ооо «ред софт»commercialRUOperating Systemsaka red soft
rails core teamoss-projectOSS Librariesaka rubyonrails, rails, actionview, rack? no
rubyonrailsoss-projectUSOSS Librariesaka rails, ruby on rails, rubyonrails.org
railsoss-projectOSS Librariesaka rails-html-sanitizer, activestorage

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://github.com/rails/rails/releases/tag/v8.1.2.1
github.com
https://github.com/rails/rails/security/advisories/GHSA-73f9-jhhh-hr5m
github.com
https://github.com/rails/rails/releases/tag/v7.2.3.1
github.com
and 13 more references View all →

Timeline

Published
Mar 23, 2026
Last Updated
Mar 24, 2026

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