{
  "cveId": "CVE-2026-77409",
  "url": "https://patchblox.com/security/cve/CVE-2026-77409",
  "summary": "CVE-2026-77409 is fixed in golang-github-rabbitmq-amqp091-go on 1 platform by DEBIAN-CVE-2026-77409 (version 1.14.0-1), released September 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "RabbitMQ amqp091-go: Denial of Service via Synchronous Event Channel Blocking",
  "description": "RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Channel.dispatch in channel.go, confirms.confirm in confirms.go, and Connection.dispatch0 in connection.go synchronously send publisher confirmations, flow-control events, consumer cancellations, returned messages, including NotifyConfirm events and connection block notifications, to application-provided channels. If a listener channel is unbuffered, full, or not drained promptly, the sole reader goroutine blocks and stops processing frames, acknowledgments, deliveries, and heartbeats. Broker-driven event bursts can therefore cause connection stalls, missed heartbeats, deadlocks, and disconnection. This issue is fixed in version 1.13.0.",
  "published": "2026-09-16T15:17:50Z",
  "severity": "Moderate",
  "cwe": "Allocation of Resources Without Limits or Throttling",
  "epss": 0.00524,
  "epssPercentile": 0.44663,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77409",
  "fixes": [
    {
      "platform": "linux",
      "product": "golang-github-rabbitmq-amqp091-go",
      "release": "Debian 14",
      "fixedVersion": "1.14.0-1",
      "fix": "DEBIAN-CVE-2026-77409",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-77409",
      "released": "2026-09-18T18:19:38Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}