CVE-2026-34835-Black-box-Analysis

This repository provides a black-box security analysis of CVE-2026-34835 from the perspective of an external penetration tester. The objective is not to reverse engineer the vulnerability, but to document how a security assessor can identify, validate, and evaluate its impact during an authorized...

rack-bug

Rack::Bug Code Climate Repository: http://github.com/brynary/rack-bug Description Rack::Bug adds a diagnostics toolbar to Rack apps. When enabled, it injects a floating div allowing exploration of logging, database queries, template rendering times, etc. Features Password-based security IP-based...

CVE-2026-39324

CVE-2026-39324 Exploit PoC Rack::Session::Cookie decrypt failure falls back to accepting unencrypted cookies | ---|--- Advisory| GHSA-33qg-7wpp-89cq Package| rack-session RubyGems Affected| = 2.1.1 Patched| 2.1.2 Summary Rack::Session::Cookie with secrets: should only accept encrypted cookies. Bu...

openSUSE 16: ansible-rmt-server / rmt-server / rmt-server-config / etc (openSUSE-SU-2026:21640-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21640-1 advisory. Update to version 3.1 bsc1274715. Security issues fixed: - CVE-2026-26961: rack: greedy multipart boundary parsing can lead to parser...

OPENSUSE-SU-2026:21640-1 Security update for rmt-server

This update for rmt-server fixes the following issues: Update to version 3.1 bsc1274715. Security issues fixed: - CVE-2026-26961: rack: greedy multipart boundary parsing can lead to parser differentials and WAF bypass bsc1261398. - CVE-2026-26962: rack: improper unfolding of folded multipart...

Astra Linux – Vulnerability in Ruby-Rack

There is a denial-of-service vulnerability in the header parsing component of Rack...

Astra Linux – Vulnerability in Ruby-Rack

Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforced 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...

Astra Linux – Vulnerability in Ruby-Rack

Rack is a modular Ruby web server interface. Carefully crafted Range headers can cause a server to respond with an unexpectedly large response. Responding with such large responses could lead to a denial of service issue. Vulnerable applications will use the Rack::File middleware or the...

Astra Linux – Vulnerability in Ruby-Rack

A denial-of-service vulnerability in the multipart parsing component of Rack was fixed in versions 2.0.9.2, 2.1.4.2, 2.2.4.1, and 3.0.0.1. This vulnerability could allow attackers to craft input that causes the RFC2183 multipart boundary parsing in Rack to take an unexpectedly long time,...

Astra Linux – Vulnerability in Ruby-Rack

Rack is a modular Ruby web server interface. Carefully crafted headers may cause header parsing in Rack to take longer than expected, potentially leading to a denial-of-service issue. The Accept and Forwarded headers are affected. Ruby 3.2 includes fixes for this problem, so Rack applications tha...

Astra Linux – Vulnerability in Ruby-Rack

Rack is a modular Ruby web server interface. The Rack::Sendfile middleware logs unsanitized header values from the X-Sendfile-Type header. An attacker can exploit this by injecting escape sequences such as newline characters into the header, resulting in log injection. This vulnerability has been...

Astra Linux – Vulnerability in Ruby-Rack

There is a denial-of-service vulnerability in the Content-Disposition parsing component of Rack, which was fixed in versions 2.0.9.2, 2.1.4.2, 2.2.4.1, and 3.0.0.1. This vulnerability could allow an attacker to create an input that causes the Content-Disposition header parsing in Rack to take an...

Astra Linux – Vulnerability in Ruby-Rack

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 buffered the entire multipart preamble bytes before the first boundary in memory, without any size limit. This caused significant memory usage and potential process termination due...

Astra Linux – Vulnerability in Ruby-Rack

A denial-of-service vulnerability exists in the Range header parsing component of Rack, version 1.5.0 and later. A carefully crafted input can cause the Range header parsing component in Rack to take an unexpectedly long time, potentially leading to a denial-of-service attack. Any applications th...

Astra Linux – Vulnerability in Ruby-Rack

There is a DoS vulnerability in Rack versions v3.0.4.2, v2.2.6.3, v2.1.4.3, and v2.0.9.3, particularly in the Multipart MIME parsing code. This vulnerability could allow an attacker to craft requests that can be abused to cause the multipart parsing to take longer than expected...

Astra Linux – Vulnerability in Ruby-Rack

Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Rack’s media type parser to take much longer than expected, leading to a possible denial-of-service vulnerability ReDos, degree 2 polynomial. This vulnerability has been fixed in 3.0.9.1 and 2.2.8.1...

Astra Linux – Vulnerability in Ruby-Rack

A security vulnerability exists in versions of Rack 2.2.3 and Rack 2.1.4, where reliance on cookies without validation/integrity checks allows an attacker to forge a secure or host-only cookie prefix...

Astra Linux – Vulnerability in Ruby-Rack

There is a directory traversal vulnerability in Rack versions prior to 2.2.0. This vulnerability allows attackers to exploit the directory traversal vulnerability in the Rack::Directory module, which is included with Rack. This could lead to the disclosure of sensitive information...

Astra Linux – Vulnerability in Ruby-Rack

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” stores non-file form fields fields without a filename entirely in memory as Ruby String objects. A single large text field in a multipart/form-data request hundreds of megabytes ...

Astra Linux – Vulnerability in Puma

Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using Puma behind a proxy that does not properly validate that the incoming HTTP requests comply with the RFC7230 standard, Puma and the frontend proxy may disagree about where the requests start and...