MCP Java SDK has a Hardcoded Wildcard CORS (Access-Control-Allow-Origin: *)

Summary Hardcoded Wildcard CORS Access-Control-Allow-Origin: - https://github.com/modelcontextprotocol/java-sdk/blob/main/mcp-core/src/main/java/io/modelcontextprotocol/server/transport/HttpServletSseServerTransportProvider.javaL289 -...

Security Bulletin: IBM App Connect Enterprise is vulnerable to multiple vulnerabilities due to node modules Hono and Undici

Summary IBM App Connect Enterprise runtime and IBM App Connect Enterprise Discovery Connectors are vulnerable to multiple vulnerabilities due to node modules Hono and Undici. Vulnerability Details CVEID:CVE-2026-29045 DESCRIPTION: Hono is a Web application framework that provides support for any...

MinIO is Vulnerable to SSE Metadata Injection via Replication Headers

Impact What kind of vulnerability is it? Who is impacted? A flaw in extractMetadataFromMime allows any authenticated user with s3:PutObject permission to inject internal server-side encryption metadata into objects by sending crafted X-Minio-Replication- headers on a normal PutObject request. The...

CVE-2026-33946 MCP Ruby SDK: Insufficient Session Binding Allows SSE Stream Hijacking via Session ID Replay

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to version 0.9.2, the Ruby SDK's streamablehttptransport.rb implementation contains a session hijacking vulnerability. An attacker who obtains a valid session ID can completely hijack the victim's...

CVE-2026-33946 MCP Ruby SDK: Insufficient Session Binding Allows SSE Stream Hijacking via Session ID Replay

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to version 0.9.2, the Ruby SDK's streamablehttptransport.rb implementation contains a session hijacking vulnerability. An attacker who obtains a valid session ID can completely hijack the victim's...

CVE-2026-31950 LibreChat's IDOR in SSE Stream Subscription Allows Reading Other Users' Chats

LibreChat is a ChatGPT clone with additional features. In versions 0.8.2-rc2 through 0.8.2-rc3, the SSE streaming endpoint /api/agents/chat/stream/:streamId does not verify that the requesting user owns the stream. Any authenticated user who obtains or guesses a valid stream ID can subscribe and...

CVE-2026-31950 LibreChat's IDOR in SSE Stream Subscription Allows Reading Other Users' Chats

LibreChat is a ChatGPT clone with additional features. In versions 0.8.2-rc2 through 0.8.2-rc3, the SSE streaming endpoint /api/agents/chat/stream/:streamId does not verify that the requesting user owns the stream. Any authenticated user who obtains or guesses a valid stream ID can subscribe and...

GHSA-QVQR-5CV7-WH35 MCP Ruby SDK: Insufficient Session Binding Allows SSE Stream Hijacking via Session ID Replay

Summary The Ruby SDK's streamablehttptransport.rb implementation contains a session hijacking vulnerability. An attacker who obtains a valid session ID can completely hijack the victim's Server-Sent Events SSE stream and intercept all real-time data. Details Root Cause The StreamableHTTPTransport...

CVE-2026-31882

Summary: CVE-2026-31882 affects Dagu, a workflow engine. Before v2.2.4, when DAGU_AUTH_MODE=basic, SSE endpoints are accessible without credentials, allowing unauthenticated access to real-time DAG data, configurations, logs, and queue status via a flaw in buildStreamAuthOptions() where BasicAuth...

GHSA-9WMW-9WPH-2VWP Dagu: SSE Authentication Bypass in Basic Auth Mode

SSE Authentication Bypass in Basic Auth Mode Summary When Dagu is configured with HTTP Basic authentication DAGUAUTHMODE=basic, all Server-Sent Events SSE endpoints are accessible without any credentials. This allows unauthenticated attackers to access real-time DAG execution data, workflow...

Server-side Request Forgery (SSRF)

Overview mcp-atlassian is a The Model Context Protocol MCP Atlassian integration is an open-source implementation that bridges Atlassian products Jira and Confluence with AI language models following Anthropic's MCP specification. This project enables secure, contextual AI interactions with...

CVE-2026-30968

Coral Server is open collaboration infrastructure that enables communication, coordination, trust and payments for The Internet of Agents. Prior to 1.1.0, the SSE endpoint /sse/v1/... in Coral Server did not strongly validate that a connecting agent was a legitimate participant in the session. Th...

CVE-2026-30968 Coral Server has insufficient validation of agent identity for SSE connections

Coral Server is open collaboration infrastructure that enables communication, coordination, trust and payments for The Internet of Agents. Prior to 1.1.0, the SSE endpoint /sse/v1/... in Coral Server did not strongly validate that a connecting agent was a legitimate participant in the session. Th...

CVE-2026-29085

CVE-2026-29085 – Hono SSE field-injection risk . IBM reports that the Hono-based Node.js module used by IBM App Connect Enterprise contains a vulnerability in streamSSE() within Streaming Helper prior to 4.12.4, where event, id, and retry fields were not validated for CR/LF characters. Since SSE ...

CVE-2026-29085

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, when using streamSSE in Streaming Helper, the event, id, and retry fields were not validated for carriage return \r or newline \n characters. Because the SSE protocol uses line breaks as...

metasploit-mcp

metasploit-mcp Metasploit Framework MCP server for exploit ex...

OPENSUSE-SU-2026:10109-1 python311-sse-starlette-3.2.0-1.1 on GA media

These are all security issues fixed in the python311-sse-starlette-3.2.0-1.1 package on the GA media of openSUSE Tumbleweed...

CVE-2025-64443

MCP Gateway allows easy and secure running and deployment of MCP servers. In versions 0.27.0 and earlier, when MCP Gateway runs in sse or streaming transport mode, it is vulnerable to DNS rebinding. An attacker who can get a victim to visit a malicious website or be served a malicious advertiseme...

CVE-2025-66414

MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. Prior to 1.24.0, The Model Context Protocol MCP TypeScript SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without...

CVE-2025-64443

The CVE-2025-64443 entry concerns the Docker MCP Gateway. In versions up to 0.27.0, when running in sse or streaming transport mode, it is vulnerable to DNS rebinding, enabling browser-based exploitation of MCP servers behind the gateway if a victim visits a malicious site or ad. The gateway is n...