vet MCP Server SSE Transport DNS Rebinding Vulnerability in github.com/safedep/vet

Open Source Vulnerabilities GO-2025-3986

vet MCP Server SSE Transport DNS Rebinding Vulnerability in github.com/safedep/vet

Open Source Vulnerabilities GHSA-6q9c-m9fr-865m

SafeDep `vet` is vulnerable to a DNS rebinding attack due to lack of HTTP `Host` and `Origin` header validation. To exploit this vulnerability following conditions must be met: 1. A `vet` scan is executed and reports are saved as `sqlite3` database 2. A `vet` MCP server is running on default port with SSE transport that has access to the report database 3. The attacker lures the victim to attacker controlled website 4. Attacker leverages DNS rebinding to access `vet` SSE server on `127.0.0.1` through the website 5. Attacker uses MCP tools to read information from report database ### Impact Data from `vet` scan sqlite3 database may be exposed to remote attackers when `vet` is used as an MCP server in SSE mode with default ports through the sqlite3 query MCP tool. ### Patches * `v1.12.5` is released that patches the issue with `Host` and `Origin` header allow list and validation ### Workarounds * Use `stdio` (default) transport for SSE server

Open Source Vulnerabilities CVE-2025-59163

vet is an open source software supply chain security tool. Versions 1.12.4 and below are vulnerable to a DNS rebinding attack due to lack of HTTP Host and Origin header validation. Data from the vet scan sqlite3 database may be exposed to remote attackers when vet is used as an MCP server in SSE mode with default ports through the sqlite3 query MCP tool. This issue is fixed in version 1.12.5.