CVE-2026-81095

Timescale pg-aiguide (through 0.5.0 ) exposed a DNS-rebinding vulnerability in its MCP HTTP transport. The server at src/httpServer.ts called the httpServerFactory helper without setting the host allow-list (DNS-rebinding-protection) option provided by the underlying SDK, causing it to accept req...

CVE-2026-81095 Timescale pg-aiguide through 0.5.0 DNS Rebinding via Disabled Host Header Allow-List

pg-aiguide started its MCP HTTP transport without enabling the host allow-list the underlying SDK provides. src/httpServer.ts called the shared httpServerFactory helper and never set the DNS-rebinding-protection option, so the transport accepted a request whatever host it named. A page in a brows...

CVE-2026-81092

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 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 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 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...

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-2026-81091 mcp-use Inspector Proxy Server-Side Request Forgery via Caller-Supplied Target URL

The proxy middleware in mcp-use's inspector forwards requests to a destination the caller names. mountMcpProxy in libraries/typescript/packages/inspector/src/server/proxy/mcp-proxy.ts read the target from the X-Target-URL header or the mcptarget parameter and proxied to it without inspecting the...

CVE-2026-81091

CVE-2026-81091 is a Server-Side Request Forgery (SSRF) in the proxy middleware of mcp-use's inspector . The vulnerable function mountMcpProxy (in libraries/typescript/packages/inspector/src/server/proxy/mcp-proxy.ts) read the target URL from the X-Target-URL header or __mcp_target parameter and f...

CVE-2026-81091 mcp-use Inspector Proxy Server-Side Request Forgery via Caller-Supplied Target URL

The proxy middleware in mcp-use's inspector forwards requests to a destination the caller names. mountMcpProxy in libraries/typescript/packages/inspector/src/server/proxy/mcp-proxy.ts read the target from the X-Target-URL header or the mcptarget parameter and proxied to it without inspecting the...

CVE-2026-55553

A flaw was found in urllib. This HTTP client for Node.js can be exploited by a remote attacker due to improper handling of cross-origin redirects. When following redirects, urllib reuses sensitive request headers, such as Authorization and Cookie, across different origins. This can lead to the...

CVE-2026-63379

A flaw was found in Libevent, an event notification library. An unauthenticated remote attacker can exploit a vulnerability where chunked HTTP Hypertext Transfer Protocol trailers are incorrectly merged into request headers. This allows the attacker to place security-sensitive fields in trailers,...

CVE-2026-16732

A flaw was found in fastify. When configured with a numeric trustProxy value, an attacker who can directly access the Fastify origin, bypassing the front-facing proxy, can spoof forwarded request fields. This vulnerability allows for host injection in generated URLs, bypasses HTTPS enforcement, a...

CVE-2026-74747

A flaw was found in the Linux kernel's IP Virtual Server IPVS component. A local attacker can manipulate the IP Header Length ihl field within network packets. This manipulation can lead to an out-of-bounds access when the kernel attempts to revalidate embedded headers, potentially causing system...

CVE-2026-72813

A flaw was found in actix-files. This vulnerability allows a remote attacker to trigger a Denial of Service DoS by sending a GET request with an empty Range header when the application is configured to abort on panic. This can lead to the application crashing on demand. Mitigation Mitigation for...

curl: 53: HTTP/1 CONNECT chunked-407 trailers bypass CURLOPT_SUPPRESS_CONNECT_HEADERS and lose CURLH_CONNECT classification

Summary When an HTTP/1 proxy returns a chunked 407 Proxy Authentication Required during a CONNECT handshake, any trailer fields in that response are delivered to the header callback even when CURLOPTSUPPRESSCONNECTHEADERS is enabled, and are classified as CURLHTRAILER instead of CURLHCONNECT in t...

curl: CVE-2026-86409: stale SigV4 headers sent unintended

Summary Setting CURLOPTAWSSIGV4 to NULL returns CURLEOK but does not disable SigV4 authentication. The handler in lib/setopt.c clears the parameter string STRINGAWSSIGV4 but never removes the CURLAUTHAWSSIGV4 bit from data-set.httpauth. A subsequent curleasyperform on the same handle still sends ...

GHSA-9QF2-26P9-2Q2Q Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints

A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring...

Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints

A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring...