{
  "cveId": "CVE-2026-41479",
  "url": "https://patchblox.com/security/cve/CVE-2026-41479",
  "summary": "CVE-2026-41479 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-41479, released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "python-authlib: Authlib is a Python library which builds OAuth and OpenID Connect servers",
  "description": "Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.10 and 1.7.1, Authlib\u0027s OAuth 2.0 authorization endpoint can be turned into an unauthenticated open redirect when a request uses an unsupported response_type and supplies an attacker-controlled redirect_uri. The vulnerable behavior happens before client lookup and before any redirect URI validation. As a result, an attacker does not need a valid client registration, an authenticated user, or any prior state. A single request to the authorization endpoint is enough to obtain a 302 Location response to an arbitrary attacker-controlled URL. This vulnerability is fixed in 1.6.10 and 1.7.1.",
  "published": "2026-06-22T21:16:24Z",
  "severity": "medium",
  "cvss": 5.4,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
  "epss": 0.00257,
  "epssPercentile": 0.17473,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-Authlib",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.5.2-bp160.4.1",
      "fix": "OPENSUSE-SU-2026:21795-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21795-1",
      "released": "2026-09-03T15:12:53Z"
    },
    {
      "platform": "linux",
      "product": "python-Authlib",
      "release": "sles 15.7",
      "fixedVersion": "1.3.1-150600.3.30.1",
      "fix": "SUSE-SU-2026:4111-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4111-1",
      "released": "2026-09-09T16:16:38Z"
    },
    {
      "platform": "linux",
      "product": "python-authlib",
      "release": "Debian 14",
      "fixedVersion": "1.7.2-1",
      "fix": "DEBIAN-CVE-2026-41479",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41479",
      "released": "2026-06-24T14:07:24Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}