Description
The activestorage gem before 8.1.4.1 for Ruby on Rails, when ImageMagick attachment processing occurs, can allow server read and write operations (e.g., reading secret_key_base) because the ImageMagick analyzer runs when a file is attached, and there is not an ImageMagick security policy to block unintended functionality.
Published: 2026-11-04
Score: 9.8 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 04 Nov 2026 14:30:00 +0000

Type Values Removed Values Added
Description The activestorage gem before 8.1.4.1 for Ruby on Rails, when ImageMagick attachment processing occurs, can allow server read and write operations (e.g., reading secret_key_base) because the ImageMagick analyzer runs when a file is attached, and there is not an ImageMagick security policy to block unintended functionality.
First Time appeared Rubyonrails
Rubyonrails active Storage
Weaknesses CWE-1188
CPEs cpe:2.3:a:rubyonrails:active_storage:*:*:*:*:*:*:*:*
Vendors & Products Rubyonrails
Rubyonrails active Storage
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

Rubyonrails Active Storage
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-11-04T14:12:17.584Z

Reserved: 2026-11-04T14:12:17.191Z

Link: CVE-2026-122006

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-04T15:17:42.940

Modified: 2026-11-04T15:17:42.940

Link: CVE-2026-122006

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-1188

    Initialization of a Resource with an Insecure Default