Bug 2450547 (CVE-2026-33202) - CVE-2026-33202 rails: Active Storage: Unintended file deletion via crafted blob keys
Summary: CVE-2026-33202 rails: Active Storage: Unintended file deletion via crafted bl...
Keywords:
Status: NEW
Alias: CVE-2026-33202
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-24 00:02 UTC by OSIDB Bzimport
Modified: 2026-04-21 14:37 UTC (History)
11 users (show)

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Description OSIDB Bzimport 2026-03-24 00:02:18 UTC 
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.
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