Linux Distros Unpatched Vulnerability : CVE-2026-28368

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by...

CVE-2026-33495

ORY Oathkeeper is an Identity & Access Proxy IAP and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules. Ory Oathkeeper is often deployed behind other components like CDNs, WAFs, or reverse proxies. Depending on the setup, another component might forward the...

CVE-2026-33149

Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Versions up to and including 2.5.3 set ALLOWEDHOSTS = '' by default, which causes Django to accept any value in the HTTP Host header without validation. The application uses request.buildabsoluteu...

CVE-2026-33433

A flaw was found in Traefik, an HTTP reverse proxy and load balancer. When the headerField is configured with a non-canonical HTTP header name, an authenticated attacker can inject a canonical version of that header. This allows the attacker to impersonate any identity to the backend, leading to ...

EUVD-2026-16616

Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField...

Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

Summary There is a potential vulnerability in Traefik's Basic and Digest authentication middlewares when headerField is configured with a non-canonical HTTP header name. An authenticated attacker with valid credentials can inject the canonical version of the configured header to impersonate any...

GHSA-QR99-7898-VR7C Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

Summary There is a potential vulnerability in Traefik's Basic and Digest authentication middlewares when headerField is configured with a non-canonical HTTP header name. An authenticated attacker with valid credentials can inject the canonical version of the configured header to impersonate any...

CVE-2026-31951

LibreChat is a ChatGPT clone with additional features. In versions 0.8.2-rc1 through 0.8.3-rc1, user-created MCP Model Context Protocol servers can include arbitrary HTTP headers that undergo credential placeholder substitution. An attacker can create a malicious MCP server with headers containin...

EUVD-2026-16769

LibreChat is a ChatGPT clone with additional features. In versions 0.8.2-rc1 through 0.8.3-rc1, user-created MCP Model Context Protocol servers can include arbitrary HTTP headers that undergo credential placeholder substitution. An attacker can create a malicious MCP server with headers containin...

CVE-2026-31951

Vulnerability summary : LibreChat’s MCP server feature (versions 0.8.2-rc1 to 0.8.3-rc1) allows arbitrary HTTP headers that undergo credential placeholder substitution. An attacker can host a malicious MCP server with headers like {{LIBRECHAT_OPENID_ACCESS_TOKEN}} to exfiltrate victims’ OAuth tok...

CVE-2026-31951 LibreChat's MCP Server Header Injection Enables OAuth Token Theft

LibreChat is a ChatGPT clone with additional features. In versions 0.8.2-rc1 through 0.8.3-rc1, user-created MCP Model Context Protocol servers can include arbitrary HTTP headers that undergo credential placeholder substitution. An attacker can create a malicious MCP server with headers containin...

CVE-2026-31951

LibreChat is a ChatGPT clone with additional features. In versions 0.8.2-rc1 through 0.8.3-rc1, user-created MCP Model Context Protocol servers can include arbitrary HTTP headers that undergo credential placeholder substitution. An attacker can create a malicious MCP server with headers containin...

CVE-2026-31951 LibreChat's MCP Server Header Injection Enables OAuth Token Theft

LibreChat is a ChatGPT clone with additional features. In versions 0.8.2-rc1 through 0.8.3-rc1, user-created MCP Model Context Protocol servers can include arbitrary HTTP headers that undergo credential placeholder substitution. An attacker can create a malicious MCP server with headers containin...

GO-2026-4762 Authorization bypass in gRPC-Go via missing leading slash in :path in google.golang.org/grpc

Authorization bypass in gRPC-Go via missing leading slash in :path in google.golang.org/grpc...

HTTP Request Smuggling

Overview io.undertow:undertow-core is a Java web server based on non-blocking IO. Affected versions of this package are vulnerable to HTTP Request Smuggling via discrepancies in the parsing of HTTP header names. An attacker can bypass security controls and access unauthorized resources by sending...

GHSA-8V4X-MGVP-P658 Undertow is Vulnerable to HTTP Request/Response Smuggling

A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks,...

Undertow is Vulnerable to HTTP Request/Response Smuggling

A flaw was found in Undertow. A remote attacker can exploit this vulnerability by sending \r\r\r as a header block terminator. This can be used for request smuggling with certain proxy servers, such as older versions of Apache Traffic Server and Google Cloud Classic Application Load Balancer,...

Undertow is Vulnerable to HTTP Request/Response Smuggling

A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks,...

EUVD-2026-16696

A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks,...

EUVD-2026-16694

A flaw was found in Undertow. A remote attacker can exploit this vulnerability by sending \r\r\r as a header block terminator. This can be used for request smuggling with certain proxy servers, such as older versions of Apache Traffic Server and Google Cloud Classic Application Load Balancer,...