CVE-2026-103091

Google OSS Agent Mesh (SAM) versions 0.1.0-alpha.1 through 0.1.0-alpha.8 are vulnerable to Missing Authorization (CWE-862) and Insecure Default (CWE-1188) . The issue originates in the MCP proxy (HandleStreamPassThrough in mcp_service.go) and the OIDC registration flow (GET /info and POST /regist...

EUVD-2026-104050

Missing Authorization CWE-862 and Initialization of a Resource with an Insecure Default CWE-1188 in the MCP proxy HandleStreamPassThrough in mcpservice.go and OIDC registration flow GET /info and POST /register in internal/controlplane/server.go in Google OSS Agent Mesh SAM versions 0.1.0-alpha.1...

CVE-2026-102503

Google OSS Agent Mesh (SAM) versions 0.1.0-alpha.1 through 0.1.0-alpha.2 are vulnerable to missing authentication and authorization in the /libp2p-http ingress server. Specifically, the StartIngressServer function in cmd/sam-node/node.go fails to verify Biscuit tokens or mesh enrollment, allowing...

EUVD-2026-104049

Missing Authentication for Critical Function CWE-306 and Missing Authorization CWE-862 in the /libp2p-http ingress server StartIngressServer in cmd/sam-node/node.go in Google OSS Agent Mesh SAM versions 0.1.0-alpha.1 through 0.1.0-alpha.2 allow an unauthenticated remote libp2p peer to bypass...