GHSA-p9fm-f462-ggrg
Rails Active Storage has a possible DoS vulnerability in proxy mode via multi-range requests
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-33658
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS_V4
- CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Description
### Impact Active Storage's proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of small ranges causes disproportionate CPU usage compared to a normal request for the same file, possibly resulting in a DoS vulnerability. ### Releases The fixed releases are available at the normal locations. ### Credit This issue was responsibly reported by Hackerone researcher [thwin_htet](https://hackerone.com/thwin_htet).
Paquets affectés
| Paquet | Versions |
|---|---|
| RubyGems · activestorage | introduced 8.1.0, fixed 8.1.2.1 |
| RubyGems · activestorage | introduced 8.0.0, fixed 8.0.4.1 |
| RubyGems · activestorage | introduced 0, fixed 7.2.3.1 |
Références
- https://github.com/rails/rails/security/advisories/GHSA-p9fm-f462-ggrg WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-33658 ADVISORY
- https://github.com/rails/rails PACKAGE
- https://github.com/rails/rails/releases/tag/v7.2.3.1 WEB
- https://github.com/rails/rails/releases/tag/v8.0.4.1 WEB
- https://github.com/rails/rails/releases/tag/v8.1.2.1 WEB
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activestorage/CVE-2026-33658.yml WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |