Vulnerability Intelligence Report
Rails Active Storage has possible glob injection in its DiskService
CVE-2026-33202
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 Active Exploit Signals
CVSS Base Score
6.6
MEDIUM
EPSS Probability:0.65%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Weaknesses (CWE)
CWE-74 ↗CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| rails | activestorage | >= 8.1.0.beta1, < 8.1.2.1 (affected), >= 8.0.0.beta1, < 8.0.4.1 (affected), < 7.2.3.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.646%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-03-17T23:23:58 |
| Published | 2026-03-23T23:34:52 |
| Last Updated | 2026-03-24T15:44:19 |
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