{
  "cveId": "CVE-2026-48710",
  "url": "https://patchblox.com/security/cve/CVE-2026-48710",
  "summary": "CVE-2026-48710 is fixed in 4 products on 1 platform, first by FEDORA-2026-E0F378428E, released May 28, 2026. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on September 2, 2026. Patch Radar priority: Patch now.",
  "title": "python-starlette: Missing Host header validation poisons request.url.path, bypassing path-based security checks",
  "description": "Missing Host header validation poisons request.url.path, bypassing path-based security checks",
  "published": "2026-05-26T22:16:44Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
  "epss": 0.70288,
  "epssPercentile": 0.99389,
  "priority": "Patch now",
  "priorityTier": 1,
  "exploited": true,
  "vendorExploited": false,
  "disclosed": false,
  "kev": {
    "added": "2026-09-02T00:00:00Z",
    "due": "2026-09-16T00:00:00Z",
    "ransomware": false,
    "requiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201CForensics Triage Requirements\u201D (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset\u0027s internet exposure and ensuring adherence to BOD 26-04 patching guidelines."
  },
  "fixes": [
    {
      "platform": "linux",
      "product": "python-starlette",
      "release": "Fedora 43",
      "fixedVersion": "0.52.1-2.fc43",
      "fix": "FEDORA-2026-E0F378428E",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e0f378428e",
      "released": "2026-05-28T20:24:07Z"
    },
    {
      "platform": "linux",
      "product": "python-starlette",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.41.3-160000.3.1",
      "fix": "OPENSUSE-SU-2026:20975-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20975-1",
      "released": "2026-06-17T08:36:30Z"
    },
    {
      "platform": "linux",
      "product": "python-starlette",
      "release": "sles 16.0",
      "fixedVersion": "0.41.3-160000.3.1",
      "fix": "SUSE-SU-2026:22151-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22151-1",
      "released": "2026-06-17T08:36:56Z"
    },
    {
      "platform": "linux",
      "product": "python3-starlette",
      "release": "Fedora 43",
      "fixedVersion": "0.52.1-2.fc43",
      "fix": "FEDORA-2026-E0F378428E",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e0f378428e",
      "released": "2026-05-28T20:24:07Z"
    },
    {
      "platform": "linux",
      "product": "python3-starlette\u002Bfull",
      "release": "Fedora 43",
      "fixedVersion": "0.52.1-2.fc43",
      "fix": "FEDORA-2026-E0F378428E",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e0f378428e",
      "released": "2026-05-28T20:24:07Z"
    },
    {
      "platform": "linux",
      "product": "starlette",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.26.1-1\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-48710",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-48710",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "starlette",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.46.1-3\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2026-48710",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-48710",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "starlette",
      "release": "Debian 14",
      "fixedVersion": "1.1.0-1",
      "fix": "DEBIAN-CVE-2026-48710",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-48710",
      "released": "2026-06-24T14:07:24Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-11T07:45:43Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}