CVE-2026-12611

A client may issue HTTP/2 requests to a Jetty server that result in blocking writes that are never unblocked, eventually causing all threads to be blocked and the whole server to become unresponsive. This is caused by a race condition in the server when handling RSTSTREAM frames and GOAWAY frames...

CVE-2026-12611

CVE-2026-12611 affects the Eclipse Jetty HTTP/2 server implementation. A client can trigger a race condition in the server's handling of RST_STREAM and GOAWAY frames, which resets HTTP2Flusher.terminated back to null. This allows flusher entries to be enqueued that are never processed, leaving wr...