{
  "cveId": "CVE-2026-35536",
  "url": "https://patchblox.com/security/cve/CVE-2026-35536",
  "summary": "CVE-2026-35536 is fixed in 9 products on 1 platform, first by python3-tornado 6.5.4-0.1ubuntu0.1, released April 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "python3-tornado: In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to ....",
  "description": "In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters.",
  "published": "2026-04-02T21:16:00Z",
  "severity": "Medium",
  "cvss": 5.4,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
  "epss": 0.00246,
  "epssPercentile": 0.15952,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-tornado",
      "release": "Debian 14",
      "fixedVersion": "6.5.5-1",
      "fix": "DEBIAN-CVE-2026-35536",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-35536",
      "released": "2026-04-03T04:16:53Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado",
      "release": "Fedora 43",
      "fixedVersion": "6.5.7-1.fc43",
      "fix": "FEDORA-2026-23656E6D2F",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-23656e6d2f",
      "released": "2026-07-03T15:39:49Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado",
      "release": "RHEL 10",
      "fixedVersion": "6.4.2-1.el10_0.2",
      "fix": "RHSA-2026:20577",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-20577",
      "released": "2026-04-03T02:25:57Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.5.3-1ubuntu0.2\u002Besm3",
      "fix": "python-tornado 4.5.3-1ubuntu0.2\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-tornado-4.5.3-1ubuntu0.2-esm3",
      "released": "2026-04-30T14:05:58Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado",
      "release": "rocky 10",
      "fixedVersion": "0:6.5.5-1.el10_1.1",
      "fix": "RLSA-2026:19034",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-19034",
      "released": "2026-05-29T16:03:24Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado",
      "release": "rocky 9",
      "fixedVersion": "0:6.5.5-1.el9_7.1",
      "fix": "RLSA-2026:19189",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-19189",
      "released": "2026-05-21T16:27:07Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "6.5.7-1.fc43",
      "fix": "FEDORA-2026-23656E6D2F",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-23656e6d2f",
      "released": "2026-07-03T15:39:49Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "6.1.0-2.amzn2023.0.8",
      "fix": "ALAS2023-2026-1587",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1587",
      "released": "2026-04-13T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado-doc",
      "release": "Fedora 43",
      "fixedVersion": "6.5.7-1.fc43",
      "fix": "FEDORA-2026-23656E6D2F",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-23656e6d2f",
      "released": "2026-07-03T15:39:49Z"
    },
    {
      "platform": "linux",
      "product": "python-tornado-doc",
      "release": "amzn 2023",
      "fixedVersion": "6.1.0-2.amzn2023.0.8",
      "fix": "ALAS2023-2026-1587",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1587",
      "released": "2026-04-13T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "Fedora 43",
      "fixedVersion": "6.5.7-1.fc43",
      "fix": "FEDORA-2026-23656E6D2F",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-23656e6d2f",
      "released": "2026-07-03T15:39:49Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "RHEL 9",
      "fixedVersion": "0:6.5.5-1.el9_8",
      "fix": "RHSA-2026:19189",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-19189",
      "released": "2026-05-15T16:04:04Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.5.3-1ubuntu0.2\u002Besm3",
      "fix": "python3-tornado 4.5.3-1ubuntu0.2\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python3-tornado-4.5.3-1ubuntu0.2-esm3",
      "released": "2026-04-30T14:05:58Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "6.1.0-3ubuntu0.1~esm5",
      "fix": "python3-tornado 6.1.0-3ubuntu0.1~esm5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-python3-tornado-6.1.0-3ubuntu0.1-esm5",
      "released": "2026-04-30T14:06:06Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "6.4.0-1ubuntu0.5",
      "fix": "python3-tornado 6.4.0-1ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-python3-tornado-6.4.0-1ubuntu0.5",
      "released": "2026-04-30T14:06:10Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "6.4.2-3ubuntu0.3",
      "fix": "python3-tornado 6.4.2-3ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-python3-tornado-6.4.2-3ubuntu0.3",
      "released": "2026-04-30T14:06:15Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "6.5.4-0.1ubuntu0.1",
      "fix": "python3-tornado 6.5.4-0.1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-python3-tornado-6.5.4-0.1ubuntu0.1",
      "released": "2026-04-02T21:16:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "almalinux 10",
      "fixedVersion": "6.5.5-1.el10_2",
      "fix": "ALSA-2026:19034",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-19034",
      "released": "2026-05-19T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "almalinux 9",
      "fixedVersion": "6.5.5-1.el9_8",
      "fix": "ALSA-2026:19189",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-19189",
      "released": "2026-05-19T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "amzn 2023",
      "fixedVersion": "6.1.0-2.amzn2023.0.8",
      "fix": "ALAS2023-2026-1587",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1587",
      "released": "2026-04-13T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "ol 10",
      "fixedVersion": "0:6.5.5-1.el10_1.1",
      "fix": "ELSA-2026-13641",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-13641",
      "released": "2026-05-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado",
      "release": "ol 9",
      "fixedVersion": "0:6.5.5-1.el9_7.1",
      "fix": "ELSA-2026-13670",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-13670",
      "released": "2026-05-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "6.5.7-1.fc43",
      "fix": "FEDORA-2026-23656E6D2F",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-23656e6d2f",
      "released": "2026-07-03T15:39:49Z"
    },
    {
      "platform": "linux",
      "product": "python3-tornado-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.0-2.amzn2023.0.8",
      "fix": "ALAS2023-2026-1587",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1587",
      "released": "2026-04-13T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3.13-tornado",
      "release": "amzn 2023",
      "fixedVersion": "6.4.2-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1588",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1588",
      "released": "2026-04-27T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3.13-tornado-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.4.2-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1588",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1588",
      "released": "2026-04-27T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3.13-tornado-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "6.4.2-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1588",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1588",
      "released": "2026-04-27T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3.13-tornado-doc",
      "release": "amzn 2023",
      "fixedVersion": "6.4.2-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1588",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1588",
      "released": "2026-04-27T09:00:00Z"
    }
  ],
  "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"
  }
}