@zereight/mcp-gitlab: DNS rebinding reaches local Streamable HTTP MCP transport

@zereight/mcp-gitlab exposes its Streamable HTTP MCP endpoint without an effective Host or Origin allowlist. A malicious web page can use DNS rebinding to route browser requests to a victim's local MCP listener while preserving an attacker-controlled Host and Origin. The server accepts those...

CVE-2026-54547

Meta Ads MCP is a Model Context Protocol MCP server that lets AI assistants run Meta Ads. Prior to version 1.0.115, AuthInjectionMiddleware in metaadsmcp/core/httpauthintegration.py rejects HTTP MCP requests only when both authtoken and pipeboardtoken are absent, while extracttokenfromheaders doe...

CVE-2026-54549 Meta Ads MCP: Server-Side Request Forgery (SSRF) in `upload_ad_image` via Unrestricted `image_url` Fetch

Meta Ads MCP is a Model Context Protocol MCP server that lets AI assistants run Meta Ads. Prior to version 1.0.115, the uploadadimage tool in metaadsmcp/core/ads.py passes an attacker-controlled imageurl to trymultipledownloadmethods in metaadsmcp/core/utils.py, where httpx.AsyncClient uses...

CVE-2026-54547 Meta Ads MCP: X-Pipeboard-Token Header Auth Bypass Reuses Operator Meta Token

Meta Ads MCP is a Model Context Protocol MCP server that lets AI assistants run Meta Ads. Prior to version 1.0.115, AuthInjectionMiddleware in metaadsmcp/core/httpauthintegration.py rejects HTTP MCP requests only when both authtoken and pipeboardtoken are absent, while extracttokenfromheaders doe...

EUVD-2026-78886

Meta Ads MCP is a Model Context Protocol MCP server that lets AI assistants run Meta Ads. Prior to version 1.0.115, AuthInjectionMiddleware in metaadsmcp/core/httpauthintegration.py rejects HTTP MCP requests only when both authtoken and pipeboardtoken are absent, while extracttokenfromheaders doe...

CVE-2026-54547: Improper Authentication

Meta Ads MCP is a Model Context Protocol MCP server that lets AI assistants run Meta Ads. Prior to version 1.0.115, AuthInjectionMiddleware in metaadsmcp/core/httpauthintegration.py rejects HTTP MCP requests only when both authtoken and pipeboardtoken are absent, while extracttokenfromheaders doe...

PT-2026-93173

@zereight/mcp-gitlab exposes its Streamable HTTP MCP endpoint without an effective Host or Origin allowlist. A malicious web page can use DNS rebinding to route browser requests to a victim's local MCP listener while preserving an attacker-controlled Host and Origin. The server accepts those...

CVE-2026-61568: Reliance on Reverse DNS Resolution for a Security-Critical Action

@zereight/mcp-gitlab is a Model Context Protocol server for GitLab. Versions prior to 2.1.30 expose the Streamable HTTP MCP endpoint without an effective Host or Origin allowlist. A malicious web page can use DNS rebinding to route browser requests to a victim's local MCP listener while preservin...

Chainlist has SSRF via MCP SSE and streamable-http transports that allows unauthenticated internal network access

Am I affected?Only if your deployment sets features.mcp.enabled = true in .chainlit/config.toml. MCP has been disabled by default since v2.7.0, so most Chainlit deployments are not affected. No authentication is required: /mcp is reachable by any client that can open a session. SummaryWhen MCP is...

Denial Of Service (DoS)

Spring AI is vulnerable to Denial of Service DoS. The vulnerability is due to the MCP Streamable HTTP server transport retaining an unbounded number of unauthenticated sessions, which allows a remote attacker to exhaust server memory over time and ultimately cause a denial of service affecting...

Exploit for CVE-2026-42559

CVE-2026-42559 — DNS rebinding in the rmcp Streamable HTTP s...

SUSE CVE-2026-55637

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...

BerriAI LiteLLM Improper Authentication Vulnerability

BerriAI LiteLLM contains an improper authentication vulnerability in the MCP Streamable HTTP endpoint that could allow an unauthenticated attacker to establish an authenticated MCP session using an arbitrary Bearer token...

CVE-2026-79747: Server-Side Request Forgery (SSRF)

MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 1.0.32, an authenticated non-admin user can register a server pointing at an arbitrary URL and make the hub issue...

CVE-2026-81098 Telnyx MCP Server through 6.83.0 Missing Authentication on Streamable HTTP Transport

The Telnyx MCP server exposed its HTTP transport on every interface and did not require a caller credential. packages/mcp-server/src/http.ts served MCP on the root path with a listener bound to all interfaces and parsed the caller's authentication headers in a mode that did not fail when they wer...

CVE-2026-81098 Telnyx MCP Server through 6.83.0 Missing Authentication on Streamable HTTP Transport

The Telnyx MCP server exposed its HTTP transport on every interface and did not require a caller credential. packages/mcp-server/src/http.ts served MCP on the root path with a listener bound to all interfaces and parsed the caller's authentication headers in a mode that did not fail when they wer...

CVE-2026-81098

The Telnyx MCP server (telnyx-node package through 6.83.0 ) exposed its Streamable HTTP transport on all network interfaces without requiring caller credentials. The vulnerable component, packages/mcp-server/src/http.ts, bound its listener to every interface and parsed authentication headers in a...

CVE-2026-81098 Telnyx MCP Server through 6.83.0 Missing Authentication on Streamable HTTP Transport

The Telnyx MCP server exposed its HTTP transport on every interface and did not require a caller credential. packages/mcp-server/src/http.ts served MCP on the root path with a listener bound to all interfaces and parsed the caller's authentication headers in a mode that did not fail when they wer...

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...

GO-2026-6295 genieacs-mcp: DNS rebinding reaches local GenieACS MCP Streamable HTTP transport in github.com/geiserx/genieacs-mcp

genieacs-mcp: DNS rebinding reaches local GenieACS MCP Streamable HTTP transport in github.com/geiserx/genieacs-mcp...