{
  "cveId": "CVE-2026-64847",
  "url": "https://patchblox.com/security/cve/CVE-2026-64847",
  "summary": "CVE-2026-64847 is fixed in python-anyio on 1 platform, first by SUSE-SU-2026:4416-1, released October 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "python-anyio: AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio",
  "description": "AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, AnyIO starts process-pool workers with standard error connected to a pipe that the parent never drains, even though the documented behavior redirects all three standard streams. Worker code that writes enough attacker-influenced data to sys.stderr can fill the pipe and block before returning the standard-output protocol response, causing the awaiting process-pool call to remain blocked indefinitely. Applications that run untrusted or faulty worker code capable of producing substantial standard-error output are affected. This issue is fixed in version 4.14.2.",
  "published": "2026-09-18T18:17:10Z",
  "severity": "",
  "epss": 0.00157,
  "epssPercentile": 0.04837,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-anyio",
      "release": "Debian 14",
      "fixedVersion": "4.15.1-1",
      "fix": "DEBIAN-CVE-2026-64847",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64847",
      "released": "2026-10-06T21:56:27Z"
    },
    {
      "platform": "linux",
      "product": "python-anyio",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "4.8.0-160000.3.1",
      "fix": "OPENSUSE-SU-2026:22060-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22060-1",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "python-anyio",
      "release": "sles 15.6",
      "fixedVersion": "4.1.0-150400.9.11.1",
      "fix": "SUSE-SU-2026:4416-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4416-1",
      "released": "2026-10-02T09:18:08Z"
    },
    {
      "platform": "linux",
      "product": "python-anyio",
      "release": "sles 15.7",
      "fixedVersion": "4.1.0-150400.9.11.1",
      "fix": "SUSE-SU-2026:4416-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4416-1",
      "released": "2026-10-02T09:18:08Z"
    },
    {
      "platform": "linux",
      "product": "python-anyio",
      "release": "sles 16.0",
      "fixedVersion": "4.8.0-160000.3.1",
      "fix": "SUSE-SU-2026:24208-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-24208-1",
      "released": "2026-11-07T00:45:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}