{
  "cveId": "CVE-2026-11352",
  "url": "https://patchblox.com/security/cve/CVE-2026-11352",
  "summary": "CVE-2026-11352 is fixed in 3 products on 1 platform, first by curl 8.18.0-1ubuntu2.3, released June 24, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "curl: An issue in curl\u2019s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service a...",
  "description": "An issue in curl\u2019s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.",
  "published": "2026-06-24T07:00:00Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.0101,
  "epssPercentile": 0.63352,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "curl",
      "release": "Debian 14",
      "fixedVersion": "8.21.0~rc2-1",
      "fix": "DEBIAN-CVE-2026-11352",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-11352",
      "released": "2026-07-24T13:34:41Z"
    },
    {
      "platform": "linux",
      "product": "curl",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "8.18.0-1ubuntu2.3",
      "fix": "curl 8.18.0-1ubuntu2.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-curl-8.18.0-1ubuntu2.3",
      "released": "2026-06-24T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "curl",
      "release": "sles 15.6",
      "fixedVersion": "8.22.0-150600.4.58.1",
      "fix": "SUSE-SU-2026:5069-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5069-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "curl",
      "release": "sles 15.7",
      "fixedVersion": "8.22.0-150700.7.33.1",
      "fix": "SUSE-SU-2026:5068-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5068-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "libcurl3t64-gnutls",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "8.18.0-1ubuntu2.3",
      "fix": "libcurl3t64-gnutls 8.18.0-1ubuntu2.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libcurl3t64-gnutls-8.18.0-1ubuntu2.3",
      "released": "2026-06-24T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libcurl4t64",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "8.18.0-1ubuntu2.3",
      "fix": "libcurl4t64 8.18.0-1ubuntu2.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libcurl4t64-8.18.0-1ubuntu2.3",
      "released": "2026-06-24T07:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}