CVE-2026-33167 (GCVE-0-2026-33167)
Vulnerability from cvelistv5
Published
2026-03-23 22:58
Modified
2026-03-24 18:44
Severity ?
1.3 (Low) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
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.
References
Impacted products
Vendor Product Version
rails actionpack Version: >= 8.1.0, < 8.1.2.1
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