NIXPKGS-2026-0745
GitHub issue
published on 24 Mar 2026
by @LeSuisse Activity log
- Created automatic suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
Rails Active Storage has a possible DoS vulnerability when in proxy mode via Range requests
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, when serving files through Active Storage's proxy delivery mode, the proxy controller loads the entire requested byte range into memory before sending it. A request with a large or unbounded Range header (e.g. `bytes=0-`) could cause the server to allocate memory proportional to the file size, possibly resulting in a DoS vulnerability through memory exhaustion. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
References
- https://github.com/rails/rails/security/advisories/GHSA-r46p-8f7g-vvvg x_refsource_CONFIRM
- https://github.com/rails/rails/commit/2cd933c366b777f873d4d590127da2f4a25e4ba5 x_refsource_MISC
- https://github.com/rails/rails/commit/42012eaaa88dfc7d0030161b2bc8074a7bbce92a x_refsource_MISC
- https://github.com/rails/rails/commit/8159a9c3de3f27a2bcf2866b8bf9ceb9075e229b 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
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