{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:authlib:authlib:*:*:*:*:*:*:*:*",
              "cpe:2.3:a:authlib:authlib:1.7.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.6.12"
              },
              {
                "introduced": "1.7.0"
              },
              {
                "last_affected": "1.7.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "CPE_STRING"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e46e515b3a87ea63ab0606b248d75f69d83a2391"
            },
            {
              "introduced": "5d2e603ec5f10bd2c4bf20e2495c076370d65b74"
            }
          ],
          "repo": "https://github.com/authlib/authlib",
          "type": "GIT"
        }
      ],
      "versions": [
        "1.7.0"
      ]
    }
  ],
  "aliases": [
    "GHSA-r95x-qfjj-fjj2"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-601",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44681.json"
  },
  "details": "Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.12 and 1.7.1, an unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an attacker-chosen URL by submitting an authorization request that omits the openid scope. This vulnerability is fixed in 1.6.12 and 1.7.1.",
  "id": "CVE-2026-44681",
  "modified": "2026-07-08T05:38:12.332129726Z",
  "published": "2026-05-27T19:20:44.122Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44681.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44681"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Authlib: Open Redirect in Authlib OIDC Implicit/Hybrid Authorization"
}