CVE-2026-33202

CWE-74CWE-22 — Path Traversal8 documents7 sources
Severity
6.6MEDIUM
EPSS
0.0%
top 92.81%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Rails ActivestorageRubyonrails Rails
Timeline
PublishedMar 24

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.

CVSS 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

Affected Packages3 packages

▶CVEListV5rails/activestorage< 7.2.3.1+2
▶RubyGemsactivestorage8.1.0.beta1 — 8.1.2.1+2
▶NVDrubyonrails/rails8.0.0 — 8.0.4.1+2

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
OSV
CVE-2026-33202: Active Storage allows users to attach cloud and local files in Rails applications↗2026-03-24
▶
OSV
Rails Active Storage has possible glob injection in its DiskService↗2026-03-23
▶
CVEList
Rails Active Storage has possible glob injection in its DiskService↗2026-03-23
▶
GHSA
Rails Active Storage has possible glob injection in its DiskService↗2026-03-23
▶

📋Vendor Advisories

2
Red Hat
rails: Active Storage: Unintended file deletion via crafted blob keys↗2026-03-23
▶
Debian
CVE-2026-33202: rails - Active Storage allows users to attach cloud and local files in Rails application...↗2026
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-33202 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶