Linux Distros Unpatched Vulnerability : CVE-2026-123339

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper trust of forwarded headers in RouterListener::onKernelFinishRequest in Symfony HttpKernel versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to...

CVE-2026-123339 Symfony: Inline Fragments Let Untrusted Forwarded Headers Set the Host, Scheme and Port of the URLs Generated for the Main Request

Improper trust of forwarded headers in RouterListener::onKernelFinishRequest in Symfony HttpKernel versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11 allows a remote attacker to control the host, scheme, and port of absolute URLs generated for the rest of...

CVE-2026-123339

The Symfony HttpKernel component is vulnerable to an improper trust of forwarded headers in RouterListener::onKernelFinishRequest() across several versions: prior to 5.4.56 , 6.x prior to 6.4.50 , 7.x prior to 7.4.23 , and 8.x prior to 8.1.11 . When a page renders an inline fragment, the system t...

CVE-2026-123339

Improper trust of forwarded headers in RouterListener::onKernelFinishRequest in Symfony HttpKernel versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11 allows a remote attacker to control the host, scheme, and port of absolute URLs generated for the rest of...

CVE-2026-123339 Symfony: Inline Fragments Let Untrusted Forwarded Headers Set the Host, Scheme and Port of the URLs Generated for the Main Request

Improper trust of forwarded headers in RouterListener::onKernelFinishRequest in Symfony HttpKernel versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11 allows a remote attacker to control the host, scheme, and port of absolute URLs generated for the rest of...

CVE-2026-114062

A flaw was found in SvelteKit. This Server-Side Request Forgery SSRF vulnerability allows a remote attacker to access internal network services that should not be publicly accessible. By manipulating the HTTP Host or forwarded headers, an attacker can direct internal self-fetch fallback requests ...

PT-2026-138041

Improper trust of forwarded headers in RouterListener::onKernelFinishRequest in Symfony HttpKernel versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11 allows a remote attacker to control the host, scheme, and port of absolute URLs generated for the rest of...

CVE-2026-123339: sensiolabs symfony: Improper trust of forwarded headers in RouterListener::onKernelFinishRequest() in Symfony HttpKernel versions prior to…

Improper trust of forwarded headers in RouterListener::onKernelFinishRequest in Symfony HttpKernel versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11 allows a remote attacker to control the host, scheme, and port of absolute URLs generated for the rest of...

Astra Linux – Vulnerability in Apache2

Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded- headers to the origin server based on the client-side Connection header hop-by-hop mechanism. This could be used to bypass IP-based authentication on the origin server/application...

CentOS Linux 8.5 [TuxCare] Security Update: pcs / pcs-snmp Multiple Vulnerabilities (CENTOS8.5:CLSA-2026:1790610419)

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2026:1790610419 advisory. - Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Rack's media type parser to take muc...

CVE-2026-73191

URL Redirection to Untrusted Site 'Open Redirect' vulnerability in Apache Syncope. When the Syncope SRA is configured for CAS authentication, the target Apereo CAS instance's URL is calculated by unconditionally looking at client-supplied forwarded HTTP headers. This issue affects Apache Syncope:...

EUVD-2026-77477

URL Redirection to Untrusted Site 'Open Redirect' vulnerability in Apache Syncope. When the Syncope SRA is configured for CAS authentication, the target Apereo CAS instance's URL is calculated by unconditionally looking at client-supplied forwarded HTTP headers. This issue affects Apache Syncope:...

CVE-2026-73191 Apache Syncope: CAS service URL injection via Forwarded HTTP headers

URL Redirection to Untrusted Site 'Open Redirect' vulnerability in Apache Syncope. When the Syncope SRA is configured for CAS authentication, the target Apereo CAS instance's URL is calculated by unconditionally looking at client-supplied forwarded HTTP headers. This issue affects Apache Syncope:...

CVE-2026-73191 Apache Syncope: CAS service URL injection via Forwarded HTTP headers

URL Redirection to Untrusted Site 'Open Redirect' vulnerability in Apache Syncope. When the Syncope SRA is configured for CAS authentication, the target Apereo CAS instance's URL is calculated by unconditionally looking at client-supplied forwarded HTTP headers. This issue affects Apache Syncope:...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: httpd (UTSA-2023-003819)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-003819 advisory. Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded- headers to the origin server based on client side Connection header hop-by-hop mechanism. This ma...

CVE-2026-72574

A host header injection vulnerability in picocms/Pico through 2.1.4 allows an unauthenticated remote attacker to control the origin of JavaScript and CSS assets loaded by the default theme. When baseurl is unset the default, Pico::getBaseUrl in lib/Pico.php builds the base URL from unvalidated...

GHSA-7WMF-PW8J-MC78 CodeIgniter: Spoofable forwarded HTTPS headers in IncomingRequest::isSecure()

Impact IncomingRequest::isSecure trusted the X-Forwarded-Proto and Front-End-Https headers from any incoming request. In affected deployments, an attacker could spoof these headers and cause the application to incorrectly treat an HTTP request as secure. This may impact applications that rely on...

CVE-2026-63220

CodeIgniter is a PHP full-stack web framework. In versions prior to 4.7.4, IncomingRequest::isSecure trusted the X-Forwarded-Proto and Front-End-Https headers from any incoming request, allowing an attacker could spoof these headers and cause the application to incorrectly treat an HTTP request a...

CVE-2026-63220

CodeIgniter (PHP)

CVE-2026-63220

CodeIgniter is a PHP full-stack web framework. In versions prior to 4.7.4, IncomingRequest::isSecure trusted the X-Forwarded-Proto and Front-End-Https headers from any incoming request, allowing an attacker could spoof these headers and cause the application to incorrectly treat an HTTP request a...