rails actionpack vulnerabilities

Latest rails actionpack CVEs

Newest publication first

1. CVE-2026-33167 Rails has a possible XSS vulnerability in its Action Pack debug exceptions

   Published 2026-03-23

   Low·CVSS 1.3 EPSS 0.27% PoC

   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 i...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.