GO-2026-6515 Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools in github.com/f1bonacc1/process-compose

Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools in github.com/f1bonacc1/process-compose...

CVE-2026-77339

creationtimestamp| type| source ---|---|--- 2026-09-18 18:35:05+00:00| published-proof-of-concept| https://github.com/F1bonacc1/process-compose/security/advisories/GHSA-5gm3-9crp-6g3v 2026-09-19 09:31:52+00:00| seen| https://gist.github.com/alon710/66235754231ab35fdbefaafc90c146d5...

Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Summary A malicious website can use DNS rebinding to control a developer's local process-compose MCP SSE listener when MCP SSE is enabled. The vulnerable path accepts browser-origin requests before any Host validation, Origin validation, or caller-secret check, then dispatches the requests into...

GHSA-5GM3-9CRP-6G3V Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Summary A malicious website can use DNS rebinding to control a developer's local process-compose MCP SSE listener when MCP SSE is enabled. The vulnerable path accepts browser-origin requests before any Host validation, Origin validation, or caller-secret check, then dispatches the requests into...

CVE-2026-77339

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

CVE-2026-77339 Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

CVE-2026-77339 Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

EUVD-2026-83168

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

CVE-2026-77339

Process Compose (a scheduler and orchestrator for non-containerized applications) had a vulnerability in its MCP SSE listener (src/mcp/server.go) prior to version 1.120.0 . The listener accepted browser-origin requests to /sse and the returned message endpoint without validating the Host or Origi...

CVE-2026-77339 Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

CVE-2026-77339: Missing Authentication for Critical Function

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

PT-2026-95497

Name of the Vulnerable Software and Affected Versions Process Compose versions prior to 1.120.0 Description Process Compose is a scheduler and orchestrator for non-containerized applications. The MCP SSE listener in src/mcp/server.go accepts browser-origin requests to the /sse endpoint and the...