EUVD-2025-33748

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, Rack::RequestPOST reads the entire request body into memory for Content-Type: application/x-www-form-urlencoded, calling rack.input.readnil without enforcing a length or cap. Large request bodies can therefo...

CVE-2025-61919

CVE-2025-61919 : Rack’s Rack::Request#POST reads the entire body into memory for application/x-www-form-urlencoded and can cause DoS via memory exhaustion in affected versions prior to 2.2.20, 3.1.18, and 3.2.3. The fix enforces form parameter limits (query_parser.bytesize_limit) and prevents unb...

CVE-2025-61919 Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, Rack::RequestPOST reads the entire request body into memory for Content-Type: application/x-www-form-urlencoded, calling rack.input.readnil without enforcing a length or cap. Large request bodies can therefo...

CVE-2025-61919

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, Rack::RequestPOST reads the entire request body into memory for Content-Type: application/x-www-form-urlencoded, calling rack.input.readnil without enforcing a length or cap. Large request bodies can therefo...

Information Exposure

Overview rack is a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between the so-called middleware into a singl...

GHSA-6XW4-3V39-52MM Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing

Summary Rack::RequestPOST reads the entire request body into memory for Content-Type: application/x-www-form-urlencoded, calling rack.input.readnil without enforcing a length or cap. Large request bodies can therefore be buffered completely into process memory before parsing, leading to denial of...

Allocation of Resources Without Limits or Throttling

Overview rack is a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between the so-called middleware into a singl...

Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing

Summary Rack::RequestPOST reads the entire request body into memory for Content-Type: application/x-www-form-urlencoded, calling rack.input.readnil without enforcing a length or cap. Large request bodies can therefore be buffered completely into process memory before parsing, leading to denial of...

Rack has a Possible Information Disclosure Vulnerability

Summary A possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to miscommunicate with the proxy and trigger unintended internal requests, potentially...

GHSA-R657-RXJC-J557 Rack has a Possible Information Disclosure Vulnerability

Summary A possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to miscommunicate with the proxy and trigger unintended internal requests, potentially...

CVE-2025-61780

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to...

DEBIAN-CVE-2025-61780

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to...

UBUNTU-CVE-2025-61780

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to...

CVE-2025-61780 Rack has Possible Information Disclosure Vulnerability

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to...

CVE-2025-61780 Rack has Possible Information Disclosure Vulnerability

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to...

EUVD-2025-33749

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to...

CVE-2025-61780

CVE-2025-61780 (Rack) affects Rack, a modular Ruby web server interface. The IBM security bulletin and Debian advisories describe a vulnerability in Rack::Sendfile when used behind a proxy that supports x-accel-redirect/x-sendfile headers. By sending crafted headers, an attacker could cause Rack:...

CVE-2025-61780

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to...

CVE-2025-61780 Rack has Possible Information Disclosure Vulnerability

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to...

Rack 资源管理错误漏洞

Rack is a modular Ruby web server interface open-sourced by Rack. A resource management error vulnerability exists in Rack versions prior to 2.2.20, 3.1.18, and 3.2.3, which stems from Rack::Request POST not limiting the size of the request body when processing the application/x-www-form-urlencod...