rubygem-rack: Rack QueryParser has an unsafe default allowing params_limit bypass via semicolon-separated parameters

An unsafe default behavior in Rack::QueryParser allows bypass of the paramslimit parameter count restriction when query string parameters are delimited by semicolons ; rather than ampersands &. The parser counts only & when enforcing the limit, while still splitting on both & and ;. As a result, ...

rubygem-rack: Rack QueryParser has an unsafe default allowing params_limit bypass via semicolon-separated parameters

An unsafe default behavior in Rack::QueryParser allows bypass of the paramslimit parameter count restriction when query string parameters are delimited by semicolons ; rather than ampersands &. The parser counts only & when enforcing the limit, while still splitting on both & and ;. As a result, ...

Parameter-parsing Bypass

Rack is vulnerable to a parameter-parsing Bypass. The vulnerability is due to Rack::QueryParser enforcing its paramslimit only for parameters separated by & while still splitting on both & and ;, which allows an attacker to bypass the parameter count limit by using ; separators to submit excessiv...

rubygem-rack: Rack QueryParser has an unsafe default allowing params_limit bypass via semicolon-separated parameters

An unsafe default behavior in Rack::QueryParser allows bypass of the paramslimit parameter count restriction when query string parameters are delimited by semicolons ; rather than ampersands &. The parser counts only & when enforcing the limit, while still splitting on both & and ;. As a result, ...

USN-7784-1: Rack vulnerability

It was discovered that Rack incorrectly handled limiting the amount of parameters. An attacker could possibly use this issue to bypass the paramslimit value, leading to a denial of service...

USN-7784-1 ruby-rack vulnerability

It was discovered that Rack incorrectly handled limiting the amount of parameters. An attacker could possibly use this issue to bypass the paramslimit value, leading to a denial of service...

CVE-2025-59830 Rack QueryParser has an unsafe default allowing params_limit bypass via semicolon-separated parameters

Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforces its paramslimit only for parameters separated by &, while still splitting on both & and ;. As a result, attackers could use ; separators to bypass the parameter count limit and submit more parameters...