GHSA-G586-CCQF-7X4R mint: Unbounded streams map growth via PUSH_PROMISE without follow-up HEADERS

Summary Mint's HTTP/2 client accepts PUSHPROMISE frames from any server it connects to and inserts every promised stream into a per-connection map without consulting maxconcurrentstreams. A malicious or compromised HTTP/2 server can flood the client with PUSHPROMISE frames and withhold the matchi...