2.3
Low
CVE-2026-33658 Active Storage allows users to attach cloud and local files in Rails applications
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 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. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| activestorage 8.1 | 8.1.0 → < 8.1.2.1 | 8.1.2.1 |
| activestorage 8.0 | 8.0.0 → < 8.0.4.1 | 8.0.4.1 |
| activestorage 7.2 | earliest → < 7.2.3.1 | 7.2.3.1 |
References
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
Other CVEs of activestorage
The 6 CVEs of activestorage →
CVE-2026-33202
Active Storage allows users to attach cloud and local files in Rails applications
6.6
Medium
CVE-2026-33195
Active Storage allows users to attach cloud and local files in Rails applications
8.0
High
CVE-2026-33174
Active Storage allows users to attach cloud and local files in Rails applications
6.6
Medium
CVE-2026-33173
Active Storage allows users to attach cloud and local files in Rails applications
5.3
Medium