9.8

CVE-2026-33195

Rails Active Storage has possible Path Traversal in DiskService

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Rubyonrails ≫ Rails Version < 7.2.3.1
Rubyonrails ≫ Rails Version >= 8.0.0 < 8.0.4.1
Rubyonrails ≫ Rails Version >= 8.1.0 < 8.1.2.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.57% 0.427
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
security-advisories@github.com 8 0 0
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 8.1 1.7 5.8
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

https://github.com/rails/rails/releases/tag/v8.1.2.1
Release Notes
https://github.com/rails/rails/releases/tag/v7.2.3.1
Release Notes
https://github.com/rails/rails/releases/tag/v8.0.4.1
Release Notes
https://github.com/rails/rails/security/advisories/GHSA-9xrj-h377-fr87
Vendor Advisory
https://github.com/rails/rails/commit/4933c1e3b8c1bb04925d60347be9f69270392f2c
Patch
https://github.com/rails/rails/commit/9b06fbc0f504b8afe333f33d19548f3b85fbe655
Patch
https://github.com/rails/rails/commit/a290c8a1ec189d793aa6d7f2570b6a763f675348
Patch
https://access.redhat.com/security/cve/CVE-2026-33195
https://bugzilla.redhat.com/show_bug.cgi?id=2450546
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33195.json