{
  "cveId": "CVE-2026-33745",
  "url": "https://patchblox.com/security/cve/CVE-2026-33745",
  "summary": "CVE-2026-33745 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-33745, released March 27, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "cpp-httplib: cpp-httplib is a C\u002B\u002B11 single-file header-only cross platform HTTP/HTTPS library",
  "description": "cpp-httplib is a C\u002B\u002B11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored Basic Auth, Bearer Token, and Digest Auth credentials to arbitrary hosts when following cross-origin HTTP redirects (301/302/307/308). A malicious or compromised server can redirect the client to an attacker-controlled host, which then receives the plaintext credentials in the \u0060Authorization\u0060 header. Version 0.39.0 fixes the issue.",
  "published": "2026-03-27T01:16:21Z",
  "severity": "high",
  "cvss": 7.4,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "epss": 0.00266,
  "epssPercentile": 0.18849,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "cpp-httplib",
      "release": "Debian 14",
      "fixedVersion": "0.41.0\u002Bds-3",
      "fix": "DEBIAN-CVE-2026-33745",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-33745",
      "released": "2026-03-27T01:16:21Z"
    },
    {
      "platform": "linux",
      "product": "cpp-httplib",
      "release": "Fedora 43",
      "fixedVersion": "0.48.0-1.fc43",
      "fix": "FEDORA-2026-1D4BD0354A",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-1d4bd0354a",
      "released": "2026-06-24T13:16:30Z"
    },
    {
      "platform": "linux",
      "product": "cpp-httplib-devel",
      "release": "Fedora 43",
      "fixedVersion": "0.48.0-1.fc43",
      "fix": "FEDORA-2026-1D4BD0354A",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-1d4bd0354a",
      "released": "2026-06-24T13:16:30Z"
    }
  ],
  "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"
  }
}