CVE-2026-34786

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Staticapplicablerules evaluates several headerrules types against the raw URL-encoded PATHINFO, while the underlying file-serving path is decoded before the file is served. As a result, a request for a...

CVE-2026-34785

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Static determines whether a request should be served as a static file using a simple string prefix check. When configured with URL prefixes such as "/css", it matches any request path that begins with...

The vulnerability of the modular interface between web servers and web applications in Rack, related to improper input validation, allows attackers to execute DoS attacks.

The vulnerability of the modular interface between web servers and web applications in Rack is related to insufficient validation of data entered by users during the analysis of complex POST requests. Exploiting this vulnerability allows a malicious actor to execute a DoS attack using a specially...