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...

EUVD-2026-91775

An information exposure vulnerability in Canonical MAAS prior to versions 3.4.10, 3.5.14, 3.6.5, 3.7.3, and 3.8.0 allows an unauthenticated attacker to retrieve the RPC secret in plaintext via the vendor data metadata endpoint. If a target machine was deployed with the 'register as rack' option...

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...

CentOS Linux 8.4 [TuxCare] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1790610331)

The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1790610331 advisory. - Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Rack's media type parser to take muc...

CentOS Linux 8 [TuxCare] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (CENTOS-STREAM8:CLSA-2026:1790243751)

The CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS-STREAM8:CLSA-2026:1790243751 advisory. - REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digi...

Rocky Linux 9 [CIQ] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (crlsa-2023_2652)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20232652 advisory. pcs: webpack: Regression of CVE-2023-28154 fixes in the Rocky Linux CVE-2023-2319 rubygem-rack: Denial of service in Multipart MIME parsing CVE-2023-27530...

Rocky Linux 8 [CIQ] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (crlsa-2023_3082)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20233082 advisory. rubygem-rack: Denial of service in Multipart MIME parsing CVE-2023-27530 rubygem-rack: denial of service in header parsing CVE-2023-27539 Tenable has...

Rocky Linux 8 [CIQ] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (crlsa-2025_19719)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202519719 advisory. rubygem-rack: Rack QueryParser has an unsafe default allowing paramslimit bypass via semicolon- separated parameters CVE-2025-59830 rack: Rack's unbounded...

Rocky Linux 9 [CIQ] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (crlsa-2025_19512)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202519512 advisory. rubygem-rack: Rack QueryParser has an unsafe default allowing paramslimit bypass via semicolon- separated parameters CVE-2025-59830 rack: Rack's unbounded...

Rocky Linux 9 [CIQ] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (crlsa-2025_20962)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202520962 advisory. rubygem-rack: Rack QueryParser has an unsafe default allowing paramslimit bypass via semicolon- separated parameters CVE-2025-59830 rack: Rack's unbounded...

Rocky Linux 8 [CIQ] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (crlsa-2025_8254)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20258254 advisory. rubygem-rack: Unbounded-Parameter DoS in Rack::QueryParser CVE-2025-46727 tornado: Tornado Multipart Form-Data Denial of Service CVE-2025-47287 Tenable has...

Rocky Linux 8 [CIQ] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (crlsa-2024_2953)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20242953 advisory. rubygem-rack: Denial of Service Vulnerability in Rack Content-Type Parsing CVE-2024-25126 rubygem-rack: Possible DoS Vulnerability with Range Header in Rac...

Rocky Linux 9 [CIQ] Security Update: pcs / pcs-snmp (crlsa-2025_8256)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20258256 advisory. rubygem-rack: Unbounded-Parameter DoS in Rack::QueryParser CVE-2025-46727 Tenable has extracted the preceding description block directly from the CIQ security...

CentOS Linux 8.4 [TuxCare] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1790610952)

The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1790610952 advisory. - A flaw was found in the Pacemaker configuration tool pcs. The pcs daemon was allowing expired accounts, and accounts with expired...

CentOS Linux 8.5 [TuxCare] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (CENTOS8.5:CLSA-2026:1790611274)

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2026:1790611274 advisory. - A flaw was found in the Pacemaker configuration tool pcs. The pcs daemon was allowing expired accounts, and accounts with expired...

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. Prior to versions 2.2.14, 3.0.16, and 3.1.14, Rack::QueryParser parsed query strings and application/x-www-form-urlencoded bodies into Ruby data structures without imposing any limit on the number of parameters. This allowed attackers to send requests...

Astra Linux – Vulnerability in Ruby-Rack

Rack is a modular Ruby web server interface. In versions 3.0.0.beta1 through 3.1.21, and from 3.2.0 through 3.2.6, Rack::Multipart::Parserhandlemimehead parsed quoted multipart parameters such as Content-Disposition: form-data; name="..." using repeated Stringindex searches combined with...

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...