CVE-2026-54309

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the...

CVE-2026-54309

CVE-2026-54309 affects n8n when using the MCP Browser extension in HTTP transport mode. The MCP endpoint accepts unauthenticated session initialization and tool invocation requests, enabling network-reachable clients (or websites visited by the user) to establish an MCP session and invoke browser...

NPM: n8n: MCP Browser HTTP Transport Exposes Unauthenticated Browser-Control Sessions

NPM: n8n: MCP Browser HTTP Transport Exposes Unauthenticated Browser-Control Sessions vulnerability discovered by ? in WordPress Npm n8n versions 2.25.7...

PT-2026-50175

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.25.7 n8n versions prior to 2.26.2 Description When @n8n/mcp-browser is operated in HTTP transport mode using the --transport http flag, the MCP endpoint allows session initialization and tool invocation requests without...

CVE-2026-50287

AgenticMail gives AI agents real email addresses and phone numbers. Prior to version 0.9.27, @agenticmail/mcp exposes a Streamable HTTP transport when started with --http or MCPHTTP=1. In that mode, the /mcp endpoint accepts requests without any HTTP authentication layer. A remote client can...

CVE-2026-5029

A remote code execution vulnerability exists in Code Runner MCP Server when run with the --transport http option, which exposes the /mcp JSON-RPC endpoint without authentication on port 3088. An unauthenticated remote attacker can invoke the run-code MCP tool to supply arbitrary source code and...

CVE-2026-44895

GitLab MCP Server lets an AI agent talk directly to GitLab. Prior to 0.6.0, the HTTP transport in src/transport.ts ships with no authentication layer at all and a wildcard Access-Control-Allow-Origin: on every response. The structural defect is that the SSE server stands up a stateful,...

CVE-2026-8874 CVE-2026-8874

Version 3.0.7 of the Securly Chrome Extension downloads JSON files containing crisis alert keywords and filtering rules over unencrypted HTTP via the Fetch API. Other endpoints in the same extension correctly fetch IWF and CIPA data over HTTPS, demonstrating an inconsistent implementation of TLS...

CVE-2026-45707

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.51.2, when ENABLEMULTITENANT=true, the HTTP transport documents that the target n8n instance is selected per-request from x-n8n-url / x-n8n-key headers. Requests that...

Security update for go1.26-openssl

This update for go1.26-openssl fixes the following issues Security issues: CVE-2026-33811: net: crash when handling long CNAME response bsc1264508. CVE-2026-33814: net/http: infinite loop in HTTP/2 transport when given bad SETTINGSMAXFRAMESIZE bsc1264506. CVE-2026-39817: cmd/go: "go tool pack" do...

dynoxide: DNS rebinding and cross-origin CSRF via MCP HTTP transport

Summary dynoxide's MCP HTTP transport was vulnerable to DNS rebinding via its transitive rmcp dependency, plus a related cross-origin CSRF gap. A malicious web page could make the user's browser send requests to a local dynoxide mcp --http or dynoxide serve --mcp server with a non-loopback Host...

GHSA-FVH2-GM75-J4J7 dynoxide: DNS rebinding and cross-origin CSRF via MCP HTTP transport

Summary dynoxide's MCP HTTP transport was vulnerable to DNS rebinding via its transitive rmcp dependency, plus a related cross-origin CSRF gap. A malicious web page could make the user's browser send requests to a local dynoxide mcp --http or dynoxide serve --mcp server with a non-loopback Host...

SUSE SLED15 / SLES15 Security Update : go1.26 (SUSE-SU-2026:1861-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1861-1 advisory. This update for go1.26 fixes the following issues Security issues: - CVE-2026-33811: net: crash when handling...

Security update for go1.25

This update for go1.25 fixes the following issues Security issues: CVE-2026-33811: net: crash when handling long CNAME response bsc1264508. CVE-2026-33814: net/http: infinite loop in HTTP/2 transport when given bad SETTINGSMAXFRAMESIZE bsc1264506. CVE-2026-39817: cmd/go: "go tool pack" does not...

RUSTSEC-2026-0140 DNS rebinding and cross-origin CSRF in dynoxide's MCP HTTP transport

dynoxide's MCP HTTP transport was vulnerable to DNS rebinding via its transitive rmcp dependency, plus a related cross-origin CSRF gap. A malicious web page could make the user's browser send requests to a local dynoxide mcp --http or dynoxide serve --mcp server with a non-loopback Host header,...

CVE-2026-5029

A remote code execution vulnerability exists in Code Runner MCP Server when run with the --transport http option, which exposes the /mcp JSON-RPC endpoint without authentication on port 3088. An unauthenticated remote attacker can invoke the run-code MCP tool to supply arbitrary source code and...

CVE-2026-5029 RCE in Code Runner MCP Server

A remote code execution vulnerability exists in Code Runner MCP Server when run with the --transport http option, which exposes the /mcp JSON-RPC endpoint without authentication on port 3088. An unauthenticated remote attacker can invoke the run-code MCP tool to supply arbitrary source code and...

CVE-2026-5029

CVE-2026-5029 affects Code Runner MCP Server when run with --transport http, exposing the /mcp JSON-RPC endpoint on port 3088 without authentication. An unauthenticated attacker can invoke the run-code MCP tool to supply arbitrary source code and execute it via child_process.exec() using the spec...

Code Runner MCP Server 访问控制错误漏洞

Code Runner MCP Server is a multi-language code execution and result display tool developed by Jun Han. There is an access control vulnerability in Code Runner MCP Server. This vulnerability arises when the --transport http option is used, exposing an unauthenticated /mcp JSON-RPC endpoint on por...

PT-2026-39994

A remote code execution vulnerability exists in Code Runner MCP Server when run with the --transport http option, which exposes the /mcp JSON-RPC endpoint without authentication on port 3088. An unauthenticated remote attacker can invoke the run-code MCP tool to supply arbitrary source code and...