{
  "cveId": "CVE-2020-11080",
  "url": "https://patchblox.com/security/cve/CVE-2020-11080",
  "summary": "CVE-2020-11080 is fixed in 16 products on 2 platforms, first by libnghttp2-14 1.30.0-1ubuntu1\u002Besm1, released June 3, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Denial of service in nghttp2",
  "description": "In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., \u003E 32), then drop the connection.",
  "published": "2020-06-03T16:15:00Z",
  "severity": "Important",
  "cvss": 7.5,
  "cwe": "CWE-707: Improper Enforcement of Message or Data Structure",
  "epss": 0.05316,
  "epssPercentile": 0.92649,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2020-11080",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Node.js 10",
      "fixedVersion": "10.23.2",
      "fix": "Node.js 10 10.23.2",
      "url": "https://patchblox.com/security/fix/windows-app/openjs.nodejs.10-10.23.2",
      "released": "2021-01-26T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Node.js 14",
      "fixedVersion": "14.5.0",
      "fix": "Node.js 14 14.5.0",
      "url": "https://patchblox.com/security/fix/windows-app/openjs.nodejs.14-14.5.0",
      "released": "2020-06-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2",
      "release": "RHEL 8",
      "fixedVersion": "0:1.33.0-3.el8_2.1",
      "fix": "RHSA-2020:2755",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2755",
      "released": "2020-06-25T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2",
      "release": "ol 8",
      "fixedVersion": "0:1.33.0-3.el8_2.1",
      "fix": "ELSA-2020-2755",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2755",
      "released": "2020-07-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2-14",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.30.0-1ubuntu1\u002Besm1",
      "fix": "libnghttp2-14 1.30.0-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libnghttp2-14-1.30.0-1ubuntu1-esm1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2-14",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.40.0-1ubuntu0.1",
      "fix": "libnghttp2-14 1.40.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libnghttp2-14-1.40.0-1ubuntu0.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:1.33.0-3.el8_2.1",
      "fix": "RHSA-2020:2755",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2755",
      "released": "2020-06-25T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2-devel",
      "release": "ol 8",
      "fixedVersion": "0:1.33.0-3.el8_2.1",
      "fix": "ELSA-2020-2755",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2755",
      "released": "2020-07-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2",
      "release": "RHEL 8",
      "fixedVersion": "0:1.33.0-3.el8_2.1",
      "fix": "RHSA-2020:2755",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2755",
      "released": "2020-06-25T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.30.0-1ubuntu1\u002Besm1",
      "fix": "nghttp2 1.30.0-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-nghttp2-1.30.0-1ubuntu1-esm1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.40.0-1ubuntu0.1",
      "fix": "nghttp2 1.40.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-nghttp2-1.40.0-1ubuntu0.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2",
      "release": "ol 8",
      "fixedVersion": "0:1.33.0-3.el8_2.1",
      "fix": "ELSA-2020-2755",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2755",
      "released": "2020-07-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2-client",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.30.0-1ubuntu1\u002Besm1",
      "fix": "nghttp2-client 1.30.0-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-nghttp2-client-1.30.0-1ubuntu1-esm1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2-client",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.40.0-1ubuntu0.1",
      "fix": "nghttp2-client 1.40.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-nghttp2-client-1.40.0-1ubuntu0.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2-proxy",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.30.0-1ubuntu1\u002Besm1",
      "fix": "nghttp2-proxy 1.30.0-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-nghttp2-proxy-1.30.0-1ubuntu1-esm1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2-proxy",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.40.0-1ubuntu0.1",
      "fix": "nghttp2-proxy 1.40.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-nghttp2-proxy-1.40.0-1ubuntu0.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2-server",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.30.0-1ubuntu1\u002Besm1",
      "fix": "nghttp2-server 1.30.0-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-nghttp2-server-1.30.0-1ubuntu1-esm1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2-server",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.40.0-1ubuntu0.1",
      "fix": "nghttp2-server 1.40.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-nghttp2-server-1.40.0-1ubuntu0.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "RHEL 8",
      "fixedVersion": "1:12.18.2-1.module\u002Bel8.2.0\u002B7233\u002B61d664c1",
      "fix": "RHSA-2020:2852",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2852",
      "released": "2020-07-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "ol 8",
      "fixedVersion": "1:10.21.0-3.module\u002Bel8.2.0\u002B7635\u002B4ebb0540",
      "fix": "ELSA-2020-2848",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2848",
      "released": "2020-07-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "RHEL 8",
      "fixedVersion": "1:12.18.2-1.module\u002Bel8.2.0\u002B7233\u002B61d664c1",
      "fix": "RHSA-2020:2852",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2852",
      "released": "2020-07-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "ol 8",
      "fixedVersion": "1:10.21.0-3.module\u002Bel8.2.0\u002B7635\u002B4ebb0540",
      "fix": "ELSA-2020-2848",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2848",
      "released": "2020-07-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "RHEL 8",
      "fixedVersion": "1:12.18.2-1.module\u002Bel8.2.0\u002B7233\u002B61d664c1",
      "fix": "RHSA-2020:2852",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2852",
      "released": "2020-07-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "ol 8",
      "fixedVersion": "1:10.21.0-3.module\u002Bel8.2.0\u002B7635\u002B4ebb0540",
      "fix": "ELSA-2020-2848",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2848",
      "released": "2020-07-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-full-i18n",
      "release": "RHEL 8",
      "fixedVersion": "1:12.18.2-1.module\u002Bel8.2.0\u002B7233\u002B61d664c1",
      "fix": "RHSA-2020:2852",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2852",
      "released": "2020-07-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-full-i18n",
      "release": "ol 8",
      "fixedVersion": "1:10.21.0-3.module\u002Bel8.2.0\u002B7635\u002B4ebb0540",
      "fix": "ELSA-2020-2848",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2848",
      "released": "2020-07-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-nodemon",
      "release": "RHEL 8",
      "fixedVersion": "0:1.18.3-1.module\u002Bel8.1.0\u002B3369\u002B37ae6a45",
      "fix": "RHSA-2020:2852",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2852",
      "released": "2020-07-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-nodemon",
      "release": "ol 8",
      "fixedVersion": "0:1.18.3-1.module\u002Bel8.1.0\u002B5392\u002B4d6b561f",
      "fix": "ELSA-2020-2848",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2848",
      "released": "2020-07-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-packaging",
      "release": "RHEL 8",
      "fixedVersion": "0:17-3.module\u002Bel8.1.0\u002B3369\u002B37ae6a45",
      "fix": "RHSA-2020:2852",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2852",
      "released": "2020-07-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-packaging",
      "release": "ol 8",
      "fixedVersion": "0:17-3.module\u002Bel8.1.0\u002B5392\u002B4d6b561f",
      "fix": "ELSA-2020-2848",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2848",
      "released": "2020-07-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "RHEL 8",
      "fixedVersion": "1:6.14.5-1.12.18.2.1.module\u002Bel8.2.0\u002B7233\u002B61d664c1",
      "fix": "RHSA-2020:2852",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2852",
      "released": "2020-07-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "ol 8",
      "fixedVersion": "1:6.14.4-1.10.21.0.3.module\u002Bel8.2.0\u002B7635\u002B4ebb0540",
      "fix": "ELSA-2020-2848",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2848",
      "released": "2020-07-14T00:00:00Z"
    }
  ],
  "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"
  }
}