Astra Linux - уязвимость в ruby-rack

There is a possible denial-of-service vulnerability in Rack versions 2.0.9.1, 2.1.4.1, and 2.2.3.1, specifically in the multipart parsing component of Rack...

Security Bulletin: Multiple vulnerabilities in IBM Aspera Console

Summary Multiple vulnerabilities were addressed in IBM Aspera Console version 3.4.10 Vulnerability Details CVEID:CVE-2026-26961 DESCRIPTION: Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser extracts the boundary parameter from...

GHSA-8VQR-QJWX-82MW Rack's multipart parsing without Content-Length header allows unbounded chunked file uploads

Summary Rack::Multipart::Parser only wraps the request body in a BoundedIO when CONTENTLENGTH is present. When a multipart/form-data request is sent without a Content-Length header, such as with HTTP chunked transfer encoding, multipart parsing continues until end-of-stream with no total size...

GHSA-RX22-G9MX-QRHV Rack's improper unfolding of folded multipart headers preserves CRLF in parsed parameter values

Summary Rack::Multipart::Parser unfolds folded multipart part headers incorrectly. When a multipart header contains an obs-fold sequence, Rack preserves the embedded CRLF in parsed parameter values such as filename or name instead of removing the folded line break during unfolding. As a result,...

EUVD-2026-18417

Rack's improper unfolding of folded multipart headers preserves CRLF in parsed parameter values...

Denial of Service (DoS)

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...

PT-2026-29923

Summary Rack::Multipart::Parser unfolds folded multipart part headers incorrectly. When a multipart header contains an obs-fold sequence, Rack preserves the embedded CRLF in parsed parameter values such as filename or name instead of removing the folded line break during unfolding. As a result,...

Rack's multipart parsing without Content-Length header allows unbounded chunked file uploads

Summary Rack::Multipart::Parser only wraps the request body in a BoundedIO when CONTENTLENGTH is present. When a multipart/form-data request is sent without a Content-Length header, such as with HTTP chunked transfer encoding, multipart parsing continues until end-of-stream with no total size...

Denial Of Service

rack is vulnerable to Denial Of Service. The vulnerability is due to unbounded buffering of the multipart preamble in Rack::Multipart::Parser, where attackers can send extremely large preamble data before the first boundary, causing excessive memory consumption and potential OOM-induced DoS...

Denial Of Service (DoS)

rack is vulnerable to Denial Of Service. The vulnerability is due to unbounded in-memory storage of non-file multipart form fields in Rack::Multipart::Parser, where attackers can send extremely large text fields that consume process memory and trigger OOM conditions, leading to DoS...

rack: Rack memory exhaustion denial of service

A denial of service flaw has been found in the rubygems rack package. Rack::Multipart::Parser can accumulate unbounded data when a multipart part’s header block never terminates with the required blank line CRLFCRLF. The parser keeps appending incoming bytes to memory without a size cap, allowing...

ROS-20251106-03

A vulnerability in the Rack module interface of the Ruby programming language interpreter is related to incorrect header processing in "Rack::Sendfile". header processing in "Rack::Sendfile". Exploitation of the vulnerability could allow an attacker, acting remotely, to gain access to potentially...

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: Rack memory exhaustion denial of service

A denial of service flaw has been found in the rubygems rack package. Rack::Multipart::Parser can accumulate unbounded data when a multipart part’s header block never terminates with the required blank line CRLFCRLF. The parser keeps appending incoming bytes to memory without a size cap, allowing...

rack: Rack's multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)

A flaw was found in Rack where Rack::Multipart::Parser stores non-file form fields entirely in memory without size limits. An attacker can send a multipart/form-data request with an extremely large text field, causing the server to allocate large amounts of memory which leads to a denial of servi...

Rack: Multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)

Summary Rack::Multipart::Parser stores non-file form fields parts without a filename entirely in memory as Ruby String objects. A single large text field in a multipart/form-data request hundreds of megabytes or more can consume equivalent process memory, potentially leading to out-of-memory OOM...

GHSA-P543-XPFM-54CP 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...

UBUNTU-CVE-2025-61770

Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, 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...

CVE-2025-61772 Rack's multipart parser buffers unbounded per-part headers, enabling DoS (memory exhaustion)

Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, Rack::Multipart::Parser can accumulate unbounded data when a multipart part’s header block never terminates with the required blank line CRLFCRLF. The parser keeps appending incoming bytes to memory witho...

CVE-2025-61772

Rack’s CVE-2025-61772 affects Rack::Multipart::Parser, which can accumulate unbounded per-part headers if a multipart part header never ends with a blank line. This leads to memory exhaustion and DoS on affected versions prior to 2.2.19, 3.1.17, and 3.2.2. The fix caps per-part header size (e.g.,...