CVE-2026-122006

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-122006
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-04 15:17:42 UTC
Updated2026-11-04 21:18:07 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-1188 | CWE-1188 CWE-1188 Initialization of a Resource with an Insecure Default

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rubyonrails Active Storage affected 8.0.5.2 custom Not specified
CNA Rubyonrails Active Storage affected 8.1 8.1.4.1 custom Not specified

References

ReferenceSourceLinkTags
github.com/rails/rails/releases/tag/v8.0.5.2 [email protected] github.com
github.com/digitalocean/droplet-1-clicks/pull/488 af854a3a-2127-422b-91ae-364da2661108 github.com
github.com/rails/rails/security/advisories/GHSA-f3w6-w445-fwh9 [email protected] github.com
github.com/rails/rails/releases/tag/v8.1.4.1 [email protected] github.com
github.com/rubysec/ruby-advisory-db/pull/1300 af854a3a-2127-422b-91ae-364da2661108 github.com
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