CVE-2026-33167 (GCVE-0-2026-33167)

Vulnerability from cvelistv5 – Published: 2026-03-23 22:58 – Updated: 2026-03-24 18:44
VLAI
Title
Rails has a possible XSS vulnerability in its Action Pack debug exceptions
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.
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 18:44 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
rails actionpack Affected: >= 8.1.0, < 8.1.2.1
guessed Create a notification for this product.
Show details on NVD website
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