MGASA-2025-0334 Updated ruby-rack packages fix security vulnerabilities

Unbounded-Parameter DoS in Rack::QueryParser. CVE-2025-46727 ReDoS Vulnerability in Rack::Multipart handlemimehead. CVE-2025-49007 Rack QueryParser has an unsafe default allowing paramslimit bypass via semicolon-separated parameters. CVE-2025-59830 Rack's unbounded multipart preamble buffering...

rack: Rack's unbounded multipart preamble buffering enables DoS (memory exhaustion)

A flaw was found in Rack where the Rack::Multipart::Parser buffers the multipart preamble memory without size limits. A remote attacker can send a crafted multipart/form-data request with a very large preamble before its first boundary, causing excessive memory consumption and denial of service...

Rack's unbounded multipart preamble buffering enables DoS (memory exhaustion)

Summary Rack::Multipart::Parser buffers the entire multipart preamble bytes before the first boundary in memory without any size limit. A client can send a large preamble followed by a valid boundary, causing significant memory use and potential process termination due to out-of-memory OOM...