CVE-2026-81092 mcp-go before 0.56.0 Missing Host Header Validation Enables DNS Rebinding

mcp-go accepted requests on its HTTP transports without checking the Host header. StreamableHTTPServer.ServeHTTP in server/streamablehttp.go and SSEServer.ServeHTTP in server/sse.go served any request arriving over a loopback connection regardless of the host it named, and the SSE transport's...

CVE-2026-81092

mcp-go before 0.56.0 accepted HTTP requests on its Streamable HTTP and SSE transports without validating the Host header . Specifically, StreamableHTTPServer.ServeHTTP (server/streamable_http.go) and SSEServer.ServeHTTP (server/sse.go) served any request arriving over a loopback connection regard...

CVE-2026-81092 mcp-go before 0.56.0 Missing Host Header Validation Enables DNS Rebinding

mcp-go accepted requests on its HTTP transports without checking the Host header. StreamableHTTPServer.ServeHTTP in server/streamablehttp.go and SSEServer.ServeHTTP in server/sse.go served any request arriving over a loopback connection regardless of the host it named, and the SSE transport's...

EUVD-2026-67147

mcp-go accepted requests on its HTTP transports without checking the Host header. StreamableHTTPServer.ServeHTTP in server/streamablehttp.go and SSEServer.ServeHTTP in server/sse.go served any request arriving over a loopback connection regardless of the host it named, and the SSE transport's...

PT-2026-82565

Name of the Vulnerable Software and Affected Versions mcp-go versions prior to 0.56.0 Description The software accepts requests on its HTTP transports without validating the Host header. Specifically, the StreamableHTTPServer.ServeHTTP function in server/streamable http.go and the...

PT-2026-82552

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.10 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect outbound model requests to an...

PT-2026-82575

Name of the Vulnerable Software and Affected Versions Dash MCP server affected versions not specified Description In network mode, the server binds its listener to the loopback address but fails to verify the host name of incoming requests. Within src/mcp server dash.py, the server is configured...

WordPress WP Fastest Cache plugin <= 1.5.0 - Unauthenticated Stored Cross-Site Scripting via HTTP Host Header vulnerability

Unauthenticated Stored Cross-Site Scripting via HTTP Host Header vulnerability discovered by Adrien Brunner in WordPress Plugin WP Fastest Cache versions = 1.5.0...

Security Bulletin: IBM Informix Wire Listener is affected by a vulnerability in the third-party Netty library (CVE-2026-59900).

Summary IBM Informix Wire Listener is affected by CVE-2026-59900. To address this issue, Netty has been updated to the latest version in IBM Informix versions 14.10.xC14 and 15.0.1.14. Vulnerability Details CVEID:CVE-2026-59900 DESCRIPTION: Netty is an asynchronous, event-driven network applicati...

CVE-2026-19760

The WP Fastest Cache – WordPress Cache Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via HTTP Host Header in all versions up to, and including, 1.5.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

EUVD-2026-66249

The WP Fastest Cache – WordPress Cache Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via HTTP Host Header in all versions up to, and including, 1.5.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

CVE-2026-19760

The WP Fastest Cache WordPress plugin (all versions up to and including 1.5.0) is vulnerable to unauthenticated stored cross-site scripting via the HTTP Host header. Insufficient input sanitization and output escaping in the Host-header-to-URL code path allows an attacker to inject arbitrary scri...

CVE-2026-19760 WP Fastest Cache <= 1.5.0 - Unauthenticated Stored Cross-Site Scripting via HTTP Host Header

The WP Fastest Cache – WordPress Cache Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via HTTP Host Header in all versions up to, and including, 1.5.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

VulnCheck KEV: CVE-2026-48710

Starlette is a lightweight ASGI framework/toolkit. Prior to version 1.0.1, the HTTP Host request header was not validated before being used to reconstruct request.url. Because the routing algorithm relies on the raw HTTP path while request.url is rebuilt from the Host header, a malformed header...

CVE-2026-74932

The WP Fastest Cache WordPress plugin before 1.5.1 does not validate the Host header before using it to build the URLs of the asset files it embeds in the pages it caches, and does not include that header in the cache key, allowing unauthenticated attackers to poison cached pages with references ...

CVE-2026-74932 WP Fastest Cache 0.9.0.3 - 1.5.0 - Unauthenticated Stored XSS via Host Header Cache Poisoning

The WP Fastest Cache WordPress plugin before 1.5.1 does not validate the Host header before using it to build the URLs of the asset files it embeds in the pages it caches, and does not include that header in the cache key, allowing unauthenticated attackers to poison cached pages with references ...

CVE-2026-74932

WP Fastest Cache (WordPress plugin) versions before 1.5.1 fail to validate the Host header before using it to build URLs for asset files embedded in cached pages, and omit that header from the cache key. This allows an unauthenticated attacker to poison cached pages with references to an attacker...

GO-2026-6266 Pipelines-as-Code GitHub App token request can be redirected via untrusted Enterprise Host header in github.com/openshift-pipelines/pipelines-as-code

Pipelines-as-Code GitHub App token request can be redirected via untrusted Enterprise Host header in github.com/openshift-pipelines/pipelines-as-code...

CVE-2026-55637 genieacs-mcp: DNS rebinding reaches local GenieACS MCP Streamable HTTP transport

genieacs-mcp is an MCP server for GenieACS written in Go. Prior to 0.3.2, the Streamable HTTP transport in cmd/server/main.go creates an unauthenticated /mcp listener on the default MCPLISTENADDR value 127.0.0.1:8080 when MCPAUTHTOKEN is unset and the httpSrv.Startaddr branch does not validate th...

CVE-2026-56709

Grav before 3.9.2 fails to validate untrusted Host headers in the sendInvitationEmail function when constructing token-bearing invitation links. Attackers can manipulate the Host header to poison invitation links and redirect users to attacker-controlled domains, bypassing the requiretrustedhost...