1.3
Low
CVE-2026-33167 Action Pack is a Rubygem for building web applications on the Rails framework
Description
Action Pack is a Rubygem for building web applications on the Rails framework. In versions on the 8.1 branch prior to 8.1.2.1, the debug exceptions page does not properly escape exception messages. A carefully crafted exception message could inject arbitrary HTML and JavaScript into the page, leading to XSS. This affects applications with detailed exception pages enabled (`config.consider_all_requests_local = true`), which is the default in development. Version 8.1.2.1 contains a patch.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| actionpack 8.1 | 8.1.0 → < 8.1.2.1 | 8.1.2.1 |
References
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified