EUVD-2026-18390

Rack::Sendfile header-based X-Accel-Mapping regex injection enables unauthorized X-Accel-Redirect...

Rack::Sendfile header-based X-Accel-Mapping regex injection enables unauthorized X-Accel-Redirect

Summary Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not escaped, an attacker who can supply X-Accel-Mapping to the backend can inject regex...

DEBIAN-CVE-2026-34830

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not...

CVE-2026-34830

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not...

CVE-2026-34830

CVE-2026-34830 affects Rack, specifically when using Rack::Sendfile#map_accel_path prior to versions 2.2.23, 3.1.21, and 3.2.6. The vulnerability arises because the X-Accel-Mapping header value is interpolated directly into a regular expression without escaping, allowing an attacker that can supp...

CVE-2026-34830 Rack: Rack::Sendfile regex injection via HTTP_X_ACCEL_MAPPING header allows arbitrary file reads through nginx

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not...

CVE-2026-34830 Rack: Rack::Sendfile regex injection via HTTP_X_ACCEL_MAPPING header allows arbitrary file reads through nginx

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not...

CVE-2026-34830

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not...

CVE-2026-34830 Rack: Rack::Sendfile regex injection via HTTP_X_ACCEL_MAPPING header allows arbitrary file reads through nginx

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not...

Rack::Sendfile header-based X-Accel-Mapping regex injection enables unauthorized X-Accel-Redirect

Summary Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not escaped, an attacker who can supply X-Accel-Mapping to the backend can inject regex...

PT-2026-29818

Name of the Vulnerable Software and Affected Versions Rack versions prior to 2.2.23, 3.1.21, and 3.2.6 Description Rack’s Rack::Sendfilemap accel path function directly uses the X-Accel-Mapping request header value in a regular expression for rewriting file paths used with X-Accel-Redirect. Becau...

PT-2026-29922

Summary Rack::Sendfilemap accel path interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not escaped, an attacker who can supply X-Accel-Mapping to the backend can inject regex...

CVE-2026-34830: Permissive Regular Expression

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfilemapaccelpath interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: rubygem-rack (UTSA-2026-005939)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005939 advisory. Rack is a modular Ruby web server interface. The Rack::Sendfile middleware logs unsanitised header values from the X-Sendfile-Type header. An attacker can exploit th...

Security Bulletin: Multiple vulnerabilities in IBM Aspera Console

Summary Multiple vulnerabilities were addressed in IBM Aspera Console version 3.4.8. Vulnerability Details CVEID:CVE-2025-61780 DESCRIPTION: 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...

Security update for rubygem-rack

This update for rubygem-rack fixes the following issues: Update to version 2.2.20 bsc1251936 CVE-2025-61919: Fixed application/x-www-form-urlencoded, callingrack.input.readnil without enforcing a length or cap bsc1251936 CVE-2025-61780: Fixed improper handling of headers in Rack::Sendfile allows...

Information Disclosure

rack is vulnerable to Information Disclosure. The vulnerability is due to trusting unvalidated x-sendfile-type and x-accel-mapping headers, allowing attackers to craft headers that trick the proxy into making internal requests and bypassing access controls...

The vulnerability in the Rack::Sendfile class of the module interface between web servers and Rack web applications allows a perpetrator to gain unauthorized access to protected information.

The vulnerability of the Rack::Sendfile class in the module interface between web servers and Rack applications is related to the exposure of information. Exploiting this vulnerability can allow an attacker, operating remotely, to gain unauthorized access to protected information using specially...

[SECURITY] [DLA 4357-1] ruby-rack security update

----------------------------------------------------------------------- Debian LTS Advisory DLA-4357-1 [email protected] https://www.debian.org/lts/security/ Utkarsh Gupta November 01, 2025 https://wiki.debian.org/LTS -...

Ruby RACK < 2.2.20 / 3.x < 3.1.18 / 3.2 < 3.2.3 Multiple Vulnerabilities

The version of the RACK Ruby library installed on the remote host is prior to 2.2.20 / 3.1.18 / 3.2.3. It is, therefore, affected by the following vulnerabilities: - Rack::RequestPOST reads the entire request body into memory for Content-Type: application/x-www-form-urlencoded, calling...