NIXPKGS-2026-0741
GitHub issue
published on 24 Mar 2026
by @LeSuisse Activity log
- Created automatic suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
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.
References
- https://github.com/rails/rails/commit/4933c1e3b8c1bb04925d60347be9f69270392f2c x_refsource_MISC
- https://github.com/rails/rails/commit/9b06fbc0f504b8afe333f33d19548f3b85fbe655 x_refsource_MISC
- https://github.com/rails/rails/commit/a290c8a1ec189d793aa6d7f2570b6a763f675348 x_refsource_MISC
- https://github.com/rails/rails/releases/tag/v7.2.3.1 x_refsource_MISC
- https://github.com/rails/rails/releases/tag/v8.0.4.1 x_refsource_MISC
- https://github.com/rails/rails/releases/tag/v8.1.2.1 x_refsource_MISC
- https://github.com/rails/rails/security/advisories/GHSA-9xrj-h377-fr87 x_refsource_CONFIRM
Affected products
activestorage
- ==< 7.2.3.1
- ==>= 8.1.0.beta1, < 8.1.2.1
- ==>= 8.0.0.beta1, < 8.0.4.1
Matching in nixpkgs
pkgs.rubyPackages.activestorage
None
pkgs.rubyPackages_3_1.activestorage
None
pkgs.rubyPackages_3_2.activestorage
None
pkgs.rubyPackages_3_3.activestorage
None
pkgs.rubyPackages_3_4.activestorage
None