GO-2026-5273 MCP Registry's GitHub OIDC tokens are replayable across registry deployments due to shared audience in github.com/modelcontextprotocol/registry

MCP Registry's GitHub OIDC tokens are replayable across registry deployments due to shared audience in github.com/modelcontextprotocol/registry...

CVE-2026-44428 MCP Registry: GitHub OIDC tokens replayable across registry deployments due to shared audience

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.6, the client-side and server-side GitHub OIDC flow is bound only to a global audience string, not to the specific registry instance being targeted. On the client side, the publisher...

CVE-2026-44428 MCP Registry: GitHub OIDC tokens replayable across registry deployments due to shared audience

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.6, the client-side and server-side GitHub OIDC flow is bound only to a global audience string, not to the specific registry instance being targeted. On the client side, the publisher...