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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-33195 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-BT 8.0 HIGH
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/rails/rails/commit/4933c1e3b8c1bb04925d60347be9f69270392f2c GitHub, Inc. Patch 
https://github.com/rails/rails/commit/9b06fbc0f504b8afe333f33d19548f3b85fbe655 GitHub, Inc. Patch 
https://github.com/rails/rails/commit/a290c8a1ec189d793aa6d7f2570b6a763f675348 GitHub, Inc. Patch 
https://github.com/rails/rails/releases/tag/v7.2.3.1 GitHub, Inc. Release Notes 
https://github.com/rails/rails/releases/tag/v8.0.4.1 GitHub, Inc. Release Notes 
https://github.com/rails/rails/releases/tag/v8.1.2.1 GitHub, Inc. Release Notes 
https://github.com/rails/rails/security/advisories/GHSA-9xrj-h377-fr87 GitHub, Inc. Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-33195
NVD Published Date:
03/23/2026
NVD Last Modified:
03/24/2026
Source:
GitHub, Inc.