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CVE-2026-33195

CRITICAL

9.8

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#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.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/24/2026

Derniere modification3/24/2026

Sourcenvd

Observations honeypot0

Produits affectes

rubyonrails:rails

Faiblesses (CWE)

CWE-22

References

https://github.com/rails/rails/commit/4933c1e3b8c1bb04925d60347be9f69270392f2c(security-advisories@github.com)

https://github.com/rails/rails/commit/9b06fbc0f504b8afe333f33d19548f3b85fbe655(security-advisories@github.com)

https://github.com/rails/rails/commit/a290c8a1ec189d793aa6d7f2570b6a763f675348(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v7.2.3.1(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v8.0.4.1(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v8.1.2.1(security-advisories@github.com)

https://github.com/rails/rails/security/advisories/GHSA-9xrj-h377-fr87(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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