CVE Watch15 jul 2026

CVE-2026-33195

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 S

CVSS

9.8

Crítico

EPSS

0.6%

p43

KEV

—

Exploit Today

0-100

Publicado: 24 mar 2026 · Última mod.: 15 jul 2026 · CWE-22

EPSS · 30d

0.6%EPSS · 30 días0.6%

2026-06-302026-07-17

Descripción técnica

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#path_for` does not validate that the resolved filesystem path remains within the storage root directory. If a blob key containing path traversal sequences (e.g. `../`) is used, it could allow reading, writing, or deleting arbitrary files on the server. Blob keys are expected to be trusted strings, but some applications could be passing user input as keys and would be affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.

Referencias oficiales

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